Craft turns into cash at two points in a luxury watch's life: when the finishing on the movement and case is inspected and graded, and when the service file is read. Both are priced by dealers in a fairly consistent way, and both are misunderstood by most buyers, who assume that "hand finished" is a single quality and that any service record is a good one. This guide covers what the main finishing techniques (anglage, black polish, Geneva stripes, perlage) actually cost in labour, how to tell hand work from machine work with a loupe, how a dealer grades finishing and originality, what a complete service history is worth compared with none, and which brands' service records can be checked with the brand. Which dial variants and provenance documents move a price are covered in our dial variants and provenance guide, and the authentication sequence, archive extracts and ownership costs in the authentication and ownership costs guide; this piece does not repeat either. Bizak & Co. sources watches to order and grades every piece before it is offered; the authentication process page lists what we check.
Last reviewed on October 10, 2026 by Filip Biczak. Prices are dated observations, not quotes.
What does movement finishing actually cost, and who pays for it?
Finishing is the decoration and refinement of movement parts after they have been machined: bevelling edges, polishing flats, graining surfaces and dressing screw heads and jewel sinks. On an industrial calibre it is done quickly by machine and adds little to the price. On a haute horlogerie calibre it is done partly or wholly by hand, consumes a large share of the hours in the movement, and is one of the main reasons two watches with similar specifications can be priced an order of magnitude apart. No brand publishes a per-component cost, so the honest way to describe the cost is in labour and skill, which the table does. The figures are the ranges that finishers and brand workshops describe in interviews and training material, not a quotation.
| Technique | What it is | Hand or machine | What it costs in labour |
|---|---|---|---|
| Anglage (bevelling) | A polished chamfer, usually at 45 degrees, along the edges of bridges, plates and levers, with the flank below it grained or polished | Machine-cut and tumbled on industrial calibres; filed, stoned and polished by hand on haute horlogerie calibres. Inward (interior) angles can only be made sharp by hand | The most labour-intensive technique on the list. A single bridge with several interior angles can take a skilled finisher hours; a full set of bridges, days |
| Black polish (poli noir) | A flat steel surface polished on a tin or zinc plate with diamond paste until it reflects as a single tone: black from one angle, white from another, with no visible scratches | Hand only. Used on screw heads, the hairspring stud, cocks, hammers and tourbillon cages | Hours per component for a large part such as a tourbillon bridge; minutes per screw head, multiplied by the number of screws |
| Geneva stripes (Côtes de Genève) | Parallel waves on bridges and rotors, applied with a rotating abrasive and originally intended to trap dust | Machine-applied almost everywhere, including at the top of the market; the quality lies in the evenness and in how the stripes meet the bevels | Low. The expense is in finishing the bevels after the stripes are applied so that the stripes do not run over the chamfer |
| Perlage (circular graining) | Overlapping circles of fine grain on the main plate and the underside of bridges, applied with a rotating abrasive peg | Hand-guided on a machine at the high end, fully automated below it. Hand perlage shows slight irregularity in spacing; automated perlage is perfectly regular | Low to moderate; an hour or so per main plate when hand-guided |
| Polished sinks and screw slots | Jewel countersinks polished to a mirror; screw slots chamfered and polished; screw heads flat-polished with bevelled rims | Hand on haute horlogerie calibres; cut by machine and left as cut on industrial calibres | Moderate, because the parts are many and small. A calibre with forty screws has forty slots and forty heads to dress |
The buyer pays for all of this, which is the point. A Patek Philippe Calatrava and a Rolex Datejust both keep excellent time, but the Patek's calibre carries bevelled interior angles, polished sinks and hand-dressed screws because the price covers them, and Rolex finishes its calibres to a functional, clean standard because its price does not need to. The Federation of the Swiss Watch Industry FH, whose site sets out the Swiss Made rules, regulates where a movement is made and assembled, not how finely it is decorated; that remains a matter of brand standard, and in Geneva of the Poinçon de Genève or, for Patek Philippe since 2009, the Patek Philippe Seal, whose finishing criteria are published by the brand on patek.com.
How do you tell hand finishing from machine finishing with a loupe?
A ten-power loupe and an exhibition caseback are enough to grade most of a movement, and the tells are consistent across brands.
- Interior angles. Where two bevels meet at an inward corner, a machine leaves a small radius because the cutting tool is round. A hand finisher files the corner to a sharp point. Sharp interior angles are the single most reliable sign of hand anglage, and a movement with none of them has been bevelled by machine however bright the chamfers look.
- Bevel width. Hand bevels are even in width around curves and along straights, with a clean line where the polished chamfer meets the grained flank. Machine bevels often widen on curves and show a soft or fuzzy transition.
- Screw heads. A black-polished screw head reflects a single tone that flips from black to white as the watch is tilted; a machine-polished head shows faint circular scratches under the loupe and reflects grey at every angle.
- Geneva stripes meeting bevels. On a well-finished bridge the stripes stop at the bevel; on a lesser one they run across it, which means the bevel was cut first and the stripes applied after, the quick way round.
- Perlage spacing. Hand-guided perlage has a visible rhythm with small variations; automated perlage looks like printed wallpaper.
- Undersides. Finishing that continues on surfaces the owner will never see (the underside of a bridge, the inside of a case) is the mark of a brand that finishes to a standard rather than to a window. It is also one of the first things that a counterfeit or a swapped movement gets wrong.
The practical consequence for pricing is that the market pays for the visible hand techniques, interior angles and black polish above all, and pays little for Geneva stripes on their own. Audemars Piguet publishes a useful account of its own standards for bevels, stripes and graining, which we summarise in our AP movement finishing guide.
How do dealers grade finishing and originality?
A dealer grades two things that look similar but are priced differently: the quality of the finishing as it left the factory, and how much of that finishing survives. The first is fixed by the reference and the brand. The second is condition, and it moves the price of every pre-owned watch. Most dealers use a scale something like the one below for the case, bracelet and movement, and apply the same language whether the watch is a Royal Oak or a Datejust.
| Grade | Case and bracelet | Movement | Typical price treatment |
|---|---|---|---|
| Factory finish | Crisp edges between brushed and polished surfaces, unbroken brushing direction, no rounding on lugs or bezel corners, protective stickers or an unworn bracelet | No tool marks on screw slots, no scratches on bridges, rotor engraving sharp | Full band for the reference and set; the only grade that is described as unworn or like new |
| Worn, unpolished | Light hairlines and a few small marks, but every edge still factory-sharp and the brushing untouched | As factory; a service may have been done without refinishing | A modest discount from factory finish; for collectors of vintage and neo-vintage watches, preferred over a refinished example |
| Refinished | Marks removed by polishing or rebrushing, with softened edges, a narrower bevel on the lugs, or brushing that no longer runs in the factory direction | Usually serviced; replacement parts possible | A larger discount, bigger on references whose finishing is the point (Royal Oak, Nautilus) than on those where it is not |
| Over-polished or non-original | Lugs visibly thinned, case lines lost, bezel or crown guards reshaped; or replaced dial, hands, bezel or bracelet | Replaced components, wrong finishing for the period, or a service dial | Priced as a wearer, not a collector piece; on vintage references the discount can be most of the collector premium |
Originality is graded alongside finishing because the two interact. A Royal Oak case that has been refinished by Audemars Piguet keeps its factory geometry, because the manufacture uses the original jigs and angles; the same case refinished by a general workshop usually loses the sharp transition between the brushed bezel top and the polished chamfer, and a trained eye reads that from across a table. Our Royal Oak authentication guide goes through the bevels and the bracelet in detail. On a Rolex the question is simpler: the lugs on a Datejust or Submariner thin visibly with each polish, and a dealer measures the lug width and compares the chamfer to a known unpolished example before deciding the grade.
How does case refinishing change the price?
Refinishing is not a defect in itself. A brand service refinishes the case and bracelet as a matter of course unless the owner asks for it to be skipped, and on a modern watch that will be worn, a light brand refinish is close to neutral for price. It becomes a discount in three situations. First, on references where the case finishing is the design, such as the Royal Oak, the Nautilus and the Aquanaut, where any loss of edge definition is read immediately. Second, on vintage and neo-vintage watches, where an unpolished case with honest wear is worth more than a bright one, because the original geometry is proof of originality in a way a photograph of the papers is not. Third, when the refinish was done outside the brand and the geometry has changed, which places the watch in the lower grade in the table whatever the papers say. The rule we apply is that a buyer should ask who refinished the case, when, and whether the brand's service invoice says so; a watch that is described as "recently polished" with no name attached is being priced on trust.
What is a complete service history worth compared with none?
A service history has two values to a buyer. The first is arithmetic: a watch that was serviced recently by the brand does not need the service a buyer would otherwise have to budget for, so a complete and recent history is worth roughly the cost of that service, plus the brand's service guarantee (Rolex, Patek Philippe and Audemars Piguet each guarantee their own service work for a period stated on the service invoice). The second is evidential: a brand service invoice names the watch by serial, records what was replaced, and confirms that the brand accepted the watch into its workshop, which it will not do for a watch with non-original parts without noting it. That makes a brand service record a secondary authentication document, and on a watch that has lost its original papers it is often the best document that exists.
The value of no history depends on age. On a watch inside its factory guarantee, no service history is normal and costs nothing. On a watch between five and ten years old it is a small unknown; a dealer will test the rate and the water resistance and price the result. On a watch over ten years old with no record, a buyer should assume a service is due and deduct it, and on a vintage watch no history can be a positive, because it increases the chance that nothing has been replaced. The worst position is a partial history that shows a service by an unnamed workshop, because it tells the buyer that parts may have been changed without telling them which. The table below sets out what a buyer can actually verify with each brand, which is what decides how much weight a record carries.
Which brands' service records can be verified?
| Brand | What a brand service record looks like | Can it be checked with the brand? | What to ask for |
|---|---|---|---|
| Rolex | A service invoice from a Rolex service centre or authorised retailer, with the serial, the work done and a service guarantee card; Rolex recommends a service approximately every ten years, per Rolex watch care and service | Partly. A Rolex service centre can usually confirm its own work on a watch presented to it; Rolex does not provide archive extracts or confirm history to third parties. Watches sold through Rolex Certified Pre-Owned since December 2022 carry the retailer's own guarantee | The invoice and the service guarantee card together; a note of any replaced parts, especially dial, hands, bezel insert or bracelet |
| Patek Philippe | A detailed service report from Patek Philippe Geneva or an authorised service centre, listing the movement number and every replaced component | Yes, through the brand's own service network, which keeps a file against the movement number; an Extract from the Archives confirms the original configuration, which is what a service record is compared with | The full report rather than a summary receipt; confirmation that the dial and hands are original |
| Audemars Piguet | A service invoice from the manufacture or an AP service centre, with case and movement numbers; the brand's services page describes its service, restoration and heritage departments | Yes, within the brand's network, which holds a file against the case and movement numbers; an archive extract confirms the original configuration | The invoice plus a statement of whether the case and bracelet were refinished and which components were replaced |
| Richard Mille | A service record from Richard Mille's own network only; the brand services its watches exclusively through its boutiques and service centres | Yes, because there is no alternative. A Richard Mille with a service history from anywhere other than the brand should be treated as a warning sign | The brand service documents and the warranty registration in the current owner's name, which Richard Mille can confirm |
Two rules follow. For Rolex, a service history is only as good as the paper, so a complete set of invoices and service cards matters more than for any other brand on the list. For Patek Philippe and Audemars Piguet, the brand's own file is the record, so a watch with no paper history but a clean brand service file is in a stronger position than it looks, and a buyer can ask the dealer to have the brand's service centre confirm it. A chronometer certificate from COSC is not a service record; it describes the bare movement when it was new.
Three catalogue examples priced on October 10, 2026: Calatrava 6119G, Royal Oak 15510ST and Datejust 41 126334
The same grading applied to three references that Bizak sources regularly shows how finishing and service history weigh differently by brand. Catalogue asks are what Bizak's sourced catalogue listed on October 10, 2026, sourced to order; they describe what we saw that day and will move.
| Patek Philippe Calatrava 6119G-001 | Audemars Piguet Royal Oak 15510ST black dial | Rolex Datejust 41 126334 blue dial | |
|---|---|---|---|
| Watch | 39 mm white gold, hobnail bezel, charcoal dial with small seconds, hand-wound calibre 30-255 PS introduced in 2021, Patek Philippe Seal | 41 mm steel, calibre 4302, 70 hours, introduced in 2022 as the 15500's successor | 41 mm Oystersteel with white gold fluted bezel, calibre 3235, 70 hours, Jubilee bracelet |
| Finishing to grade | Bevelled bridges with interior angles, polished sinks and black-polished screws, visible through the sapphire back; a white gold case that marks easily and is refinished only by Patek | The case and bracelet are the finishing: brushed tops, polished chamfers and the sharp transition between them; movement with Geneva stripes, perlage and polished bevels under the sapphire back | Functional movement finishing behind a solid caseback; the grade rests on the case, the fluted bezel and the Jubilee bracelet, which stretches and polishes easily |
| Service history weight | High. The brand's file against the movement number is the record; a Geneva service report adds confidence and a long workshop wait if it is missing | High for the case: an AP refinish keeps the geometry, an outside refinish does not. Service file held by the brand | Moderate. A ten-year interval and a paper record; no brand archive, so the invoices are the history |
| Bizak catalogue ask, October 10, 2026 | US$36,750; the rose gold 5227R-001 with its officer caseback was listed at US$43,200 the same day | US$56,650; the green-dial 15510ST at US$59,740 the same day | US$19,920 for the blue fluted-motif dial; a pre-owned blue-dial 126334 on Jubilee at US$14,520 the same day |
| Where the grade bites | Hairlines on the white gold case and bezel; a refinish by anyone but Patek Philippe | Rounded chamfers on the bezel and lugs, stretched bracelet, lost brushing direction | Thinned lugs, a polished Jubilee, a replaced bezel or dial without a Rolex invoice saying so |
The spread between the brand new and the pre-owned 126334 on the same day is the clearest example in the table of how grade is priced: the difference is condition, set and warranty, not the watch. The 126334 guide covers the dials and bezel, the 15510ST guide the calibre 4302 generation, and the 6119G guide the 30-255 PS and the 6119 case. Price bands for each brand across references are in the Patek Philippe, Audemars Piguet and Rolex price guides.
Buying checks for finishing and service history
- Loupe the movement. On an exhibition caseback, look for sharp interior angles, even bevels and black-polished screw heads; on a solid caseback, ask whether the dealer opened it and what was recorded.
- Read the edges. Run a fingernail along the lug chamfer and the bezel edge; a factory edge catches, a polished one does not. Compare the brushing direction with a factory photograph of the reference.
- Measure the lugs. On a Rolex or an Oyster-cased watch, ask for the lug width at the tip; thinning is the first sign of repeated polishing.
- Ask who refinished. Brand, named workshop or unknown. Only the first keeps the factory geometry.
- Get the whole service file. Invoices and service cards for Rolex; the brand's service report for Patek Philippe and Audemars Piguet; brand documents only for Richard Mille. Ask the dealer to confirm a Patek Philippe or AP service file with the brand where it matters to the price.
- List the replaced parts. A service that replaced the dial, hands or bezel insert changes the originality grade even when the paperwork is complete; the invoice should say so.
- Budget the gap. No history on a watch over ten years old means a service in the price; a partial history from an unnamed workshop means an inspection before the price is agreed.
- Price the grade, not the description. "Excellent" and "mint" are not grades. Ask which line of the table the watch sits on and why.
Quick answers
What is anglage on a watch movement?
Anglage is the bevel polished along the edges of bridges, plates and levers. Machines can cut and polish straight and outward bevels; only hand work produces sharp interior angles, which is why they are the quickest sign of hand finishing and the part of the movement the market pays most for.
How can you tell if a watch movement is hand finished?
With a ten-power loupe: sharp inward corners where bevels meet, even bevel width around curves, screw heads that reflect black from one angle and white from another, Geneva stripes that stop at the bevel rather than running over it, and finishing that continues on surfaces the owner cannot normally see.
How much does a service history add to a luxury watch's value?
A recent brand service is worth roughly the cost of that service plus the brand's service guarantee, and a brand service invoice doubles as a secondary authentication document. On a watch over ten years old with no record, a buyer should deduct the cost of a service; on a vintage watch no history can be neutral or positive because it suggests nothing has been replaced.
Can a Rolex service history be verified?
Only partly. A Rolex service centre can usually confirm its own work on a watch presented to it, but Rolex does not provide archive extracts or confirm a watch's history to third parties, so the invoices and service guarantee cards are the record. Patek Philippe and Audemars Piguet hold a service file against the movement or case number that their service centres can confirm.
Does polishing a watch reduce its value?
It depends on who did it and on the reference. A brand refinish on a modern watch is close to neutral; any refinish that softens the case edges is a discount on references where the finishing is the design, such as the Royal Oak and the Nautilus, and on vintage watches an unpolished case is worth more than a bright one.
Request a sourcing or grading quote
Tell us the reference, dial, metal, preferred year range and whether a full service file is required, plus your budget and timing, through our sourcing enquiry form. We confirm the specific watch, photographs under magnification, the grade, the service file and the final price before you commit. Catalogue entries: Calatrava 6119G-001, Calatrava 5227R-001, Royal Oak 15510ST black dial, Datejust 41 126334 blue fluted-motif dial; browse the Calatrava collection, the Royal Oak collection, the Datejust collection, the pre-owned watches collection, or sell or trade your watch; our guide to selling a watch to a dealer explains how grade and service file shape an offer.
Related reading: Dial variants and provenance in 2026 · Authentication and ownership costs in 2026 · AP movement finishing explained · Patek Philippe vintage authentication.
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