Blancpain Villeret Ultraplate 6604-2944-55A: Red Gold Mother-of-Pearl Guide

The Blancpain Villeret Ultraplate 6604-2944-55A is a brand-new 33.9 mm red gold dress watch with a mother-of-pearl dial, diamond hour markers, a diamond-set bezel and a leather strap. It belongs to the Villeret collection, Blancpain's classical line named after the Swiss village where the house was founded in 1735, and the Ultraplate name refers to its slim profile. This guide covers the specifications we can confirm, what mother-of-pearl and a diamond-set bezel mean for care and inspection, how the 6604 compares with other Villeret watches, how a 33.9 mm case wears, price context in 2026 and what to check before buying. Bizak & Co. sources this reference to order; the Villeret collection lists the configurations we can seek.

Last reviewed on October 1, 2026 by Filip Biczak. Prices are dated observations, not quotes.

Blancpain Villeret Ultraplate 6604-2944-55A specifications

Source: Blancpain publishes its Villeret collection on its own website, but we did not confirm a current catalogue page for this reference, so treat the table as our catalogue listing and verify it against the papers. For background on Swiss fine watchmaking, see the Federation of the Swiss Watch Industry.

What is the Blancpain Villeret collection?

Blancpain traces its history to 1735, when Jehan-Jacques Blancpain set up a workshop in Villeret, which makes it one of the oldest names in watchmaking. The brand is also known for a simple stance: it has said for decades that it has never made a quartz watch and never will. The Villeret collection is its classical range, with round cases, slim lines and restrained dials, and the Ultraplate version is the thin time-only watch within it. This reference is the jewelled variant, with diamonds on the bezel and the dial, which turns a plain dress watch into an evening watch.

What should you know about a mother-of-pearl dial?

Mother-of-pearl is the inner layer of a shell, cut into thin slices for the dial. It shifts colour with light, from creamy white to pink and silver, and no two dials are identical. It is also more delicate than metal or enamel: it can chip at the edges, crack under shock and mark if moisture gets inside. On a new watch the dial should be uniform in its natural variation, with no chips, no hairline cracks and no cloudy patches. Ask for photographs in daylight and under lamp light, because pearl looks different in each, and keep the watch away from knocks and perfume or cleaning products.

How should you inspect a diamond-set bezel?

A set bezel is built from many small stones held by tiny claws or beads. On a factory-set watch the stones should be evenly sized, tightly seated and flush with each other, and the setting should have no gaps or raised points. Use a loupe and look all round; run a finger lightly over the surface to feel for a raised stone. Ask whether the papers record the diamonds' quality and total weight, and write down what you are told, because we do not state those figures when they are not confirmed in our catalogue record. Treat a missing stone on a new watch as a warranty issue, not wear.

Villeret Ultraplate 6604 vs an unset Ultraplate vs a Complete Calendar

If you want the Blancpain case and movement without stones, an unset Ultraplate is quieter and easier to live with; if you want the jewelled look, the 6604 is complete as it is. Our Patek Philippe dress watch guide covers other houses in the same part of the market.

How does a 33.9 mm red gold watch wear?

At 33.9 mm the case is mid-size, which suits small and medium wrists and sits close under a cuff. A thin case adds to the effect, and red gold is warmer than yellow gold against skin. On wrists above about 17 cm (6.7 inches) it will read as a small watch, which may be what you want. A leather strap keeps it slim; check the strap, the buckle and the length, since replacements in the correct metal and finish take time. Because the dial and bezel are delicate, many owners keep the watch for dressy occasions rather than everyday use.

How much is a Blancpain Villeret Ultraplate 6604-2944-55A in 2026?

• Retail. We could not confirm a current Blancpain list price for this reference, and we do not quote one. Ask Blancpain or an authorised boutique whether the reference is still catalogued and what a comparable jewelled Villeret costs.
• Secondary market. We have no reliable price history for this exact reference, so treat any asking price, including ours, as one dated data point rather than a market median.
• Bizak catalogue ask. On October 1, 2026 our sourced catalogue listed the 6604-2944-55A at US$26,599, brand new and sourced to order.

Those figures describe what we saw and will move. For auction context on dress watches, see Phillips Watches, and for the market in general see our Cartier dress watch guide.

Buying a jewelled Blancpain: what to check

• Papers and warranty. A brand-new watch should come with the box, warranty card, any certificate and the receipt; the warranty card should be blank and unregistered, and the reference should read 6604-2944-55A.
• Mother-of-pearl. Look for chips, cracks or uneven patches near the edges and around the indices.
• Stones. Inspect every diamond on the bezel and dial under a loupe; none should be loose, missing or sitting proud.
• Case. Red gold should show no scratches or contact marks on a new watch; check the lugs and case flanks.
• Winding and setting. The crown should operate smoothly and the hands should set without catching.
• Strap and buckle. The leather should show no creasing, and the buckle should match the case; display pieces can show strap wear even if the watch is unworn.
• Price against the band. A new gold gem-set Blancpain offered far below comparable asks is a warning sign.

Our authentication process describes what we inspect before dispatch.

Is the 6604-2944-55A a good watch to own?

It is a watch for evenings, gifts and occasions rather than for trading. Blancpain's heritage and the pearl and diamond finish make it distinctive, but jewelled gold watches are a narrower resale market than core steel references. Buy it because you want a small, jewelled dress watch from an old house; if resale matters, ask for a written assessment before you commit.

Quick answers

What is the Blancpain Villeret Ultraplate 6604-2944-55A?

It is a 33.9 mm red gold dress watch with a mother-of-pearl dial, diamond hour markers, a diamond-set bezel and a leather strap, in Blancpain's Villeret collection.

How much is it?

Bizak's sourced catalogue listed it at US$26,599 brand new on October 1, 2026. We could not confirm a current Blancpain retail price, so ask for a dated quote.

Is mother-of-pearl delicate?

More than metal. It can chip at the edges or crack under shock, so inspect the dial closely and avoid knocks and moisture.

Does the watch have a quartz movement?

No. Blancpain has long said it makes only mechanical watches, although our record does not give the calibre for this reference, so confirm it from the papers.

Is 33.9 mm too small?

It is a mid-size dress case that suits small and medium wrists. Try it on, because a thin case and a gem-set bezel change how the size reads.

Request a Blancpain Villeret Ultraplate sourcing quote

Tell us the metal, dial, condition, whether papers are required, your budget and timing through our sourcing enquiry form. We confirm the specific watch, photographs, papers and final price before you commit. Catalogue entry: Blancpain Villeret Ultraplate 6604-2944-55A; browse the Villeret collection, the Blancpain collection, or sell or trade your watch.

Related reading: Patek Philippe dress watch guide · Cartier dress watch heritage guide · Audemars Piguet Royal Oak dress watch guide · Rolex dress watch heritage guide.