Tudor Black Bay 58 GMT M79018V-0006 Guide: Gold, Green Dial and Price

The Tudor Black Bay 58 GMT M79018V-0006 is a 39 mm watch in solid 18K yellow gold with a green dial, a gold bracelet and an automatic movement that tracks a second time zone. It takes the vintage proportions of the Black Bay 58 and adds the GMT function, then builds the whole watch in precious metal, which puts it a long way above the steel Black Bay 58 GMT in both cost and character. This guide covers the specifications, how the gold version differs from the steel one, how the 39 mm case wears, how the GMT hand works, how it compares with the steel 58 GMT and the 41 mm Black Bay GMT, price context in 2026, and what to check before you buy. Bizak & Co. sources this reference to order; the Tudor collection shows the models we can seek.

Last reviewed on September 29, 2026 by Filip Biczak. Prices are dated observations, not quotes.

Tudor Black Bay 58 GMT M79018V-0006 specifications

Quote the reference number M79018V-0006 when you ask any authorised Tudor retailer to confirm the specification, and check the calibre, power reserve and water resistance for this exact reference against Tudor's documentation supplied with the watch.

What is the Black Bay 58 GMT, and how is the gold version different?

The Black Bay 58 is Tudor's slimmer, smaller take on its diver's watch heritage. It is named for 1958, the year of the Tudor Submariner that inspired its proportions, and it sits at 39 mm against the 41 mm of the standard Black Bay. The Black Bay 58 GMT adds a fourth hand and a 24-hour bezel to that platform, so the wearer can read home time while travelling. The steel versions, such as the M7939G1A0NRU-0001 on a bracelet and the M7939G1A0NRU-0002 on a rubber strap, are the core of the range.

The M79018V-0006 is the same idea built in 18K yellow gold from the case through the bracelet. That changes three things. The weight is higher, because gold is far denser than stainless steel. The surface is softer, so it shows contact marks sooner. And the audience shifts: a steel Black Bay 58 GMT is a daily travel tool for many owners, while a full gold example is closer to a dress-leaning sports watch that happens to have a second time zone. The green dial is what stops it reading as a plain gold watch; the colour softens the metal and gives the piece a distinct identity within the Black Bay range.

How does the 39 mm case wear?

A 39 mm diameter is the reason many buyers choose the Black Bay 58 family over the 41 mm Black Bay. It suits a wide range of wrists and slides under a shirt cuff more easily than a 41 mm watch. Lug-to-lug length matters as much as diameter on a sports watch, and Tudor's 58 cases are known for wearing compact, though we do not state a lug-to-lug figure here because it should be taken from Tudor's published specification or from the watch itself.

The gold bracelet adds presence. A full gold bracelet on a 39 mm case gives the watch a noticeable weight on the wrist, which some owners like and others find tiring on long days. If you are used to a steel sports watch, try the weight before you decide. Gold also sits differently against clothing: it reads as jewellery in a way that steel does not, so the watch works with a jacket and a plain shirt as easily as with shorts on holiday.

How does the GMT function work?

A GMT watch shows two time zones at once. The 24-hour hand makes one revolution a day and points to a 24-hour scale on the rotating bezel. The main hour, minute and seconds hands show local time. On Tudor's GMT models the local hour hand can be moved in one-hour steps without stopping the watch, so when you land in a new time zone you jump the hour hand to local time and the 24-hour hand keeps showing home time. Rotating the bezel lets you read a third zone against the 24-hour hand.

That is the practical difference from a plain Black Bay 58, which has only a rotating 60-minute bezel for timing dives. It is also the difference from the Rolex GMT-Master II, the watch that popularised the layout; if you are weighing the two, our guides to the GMT-Master II 126710BLNR and the Pepsi GMT-Master II set out what the Rolex side of that comparison looks like, and the GMT watches collection gathers the category.

M79018V-0006 vs steel Black Bay 58 GMT vs 41 mm Black Bay GMT: which to choose?

The honest summary is that the steel Black Bay 58 GMT is the better watch for hard use and the gold reference is the better watch for a buyer who already knows they want gold. The 41 mm Black Bay GMT is the choice if 39 mm feels small on your wrist. All three run a similar GMT logic, so the decision is about metal, size and dial rather than function.

How much is the Tudor M79018V-0006? Price context in 2026

Tudor sets its own retail prices and revises them, so we do not quote a retail figure for a reference we cannot check against a current brand price list on the day you read this. For the current retail number, ask an authorised Tudor retailer or check the reference on Tudor's website. What we can state is Bizak's own catalogue: on September 29, 2026 the sourced catalogue listed the M79018V-0006 at US$38,475, brand new, sourced to order. That is a dated observation of one listing, not a market median and not a quote, and the final price for a specific watch is confirmed before purchase.

Two points help when you judge any price for this watch. First, solid gold is what separates it from the steel Black Bay 58 GMT, so the premium over steel is largely the price of the metal and the finishing. Second, a brand-new full set is worth more than a used example without papers, and the difference should be visible in the quote. If two offers differ by more than the cost of a service, ask what is different about the watches.

• Ask what is included. Box, warranty card, booklets, spare links and any tags.
• Ask for the date on the warranty card. It sets the start of the manufacturer's cover.
• Ask for the price in writing. Include shipping, insurance and any taxes.

Is 18K yellow gold a sensible choice for a sports watch?

It can be, provided you accept how gold behaves. 18K gold is an alloy of 75 percent gold with copper and silver, chosen to be harder than pure gold but still much softer than steel or ceramic. It picks up fine hairlines and small dents from daily contact, and a bracelet in gold will show wear along the clasp and links over years. Owners who like the look usually treat this as patina; owners who want a flawless finish tend to reserve the watch for occasions or plan an occasional polish.

Gold also holds visual value that steel does not: the metal itself has worth independent of the brand, which is one reason precious-metal watches are often described as retaining more of their base cost than steel sports watches. We do not promise any resale outcome. If you plan to sell one day, keep the box and papers and read our note on selling or trading a watch.

What should you check before buying a gold Black Bay 58 GMT?

• Reference number. The papers, the case back and the listing should all read M79018V-0006.
• Set completeness. A brand-new example should have its box, warranty card and booklets; check the card is dated and filled in.
• Case and bracelet surfaces. Look for hairlines, dents on the lugs and wear at the clasp, even on a new piece that has been handled.
• Bezel action and alignment. The bezel should click cleanly, and the triangle should line up with the twelve o'clock marker.
• GMT operation. Set the hour hand forward and back in one-hour steps and confirm the 24-hour hand keeps its position.
• Dial and lume. The green should be even, printing crisp and the lume consistent across markers and hands.
• Dealer authentication. Read how we handle this on our authenticity guarantee page.

Where does this watch sit against Rolex and other brands?

Tudor was founded by Rolex's founder, Hans Wilsdorf, and the two brands share a heritage of tool-watch design, though they are run separately and priced separately. Buyers often meet the Black Bay 58 GMT while shopping for a GMT in a lower price bracket than the Rolex GMT-Master II and then discover the gold version is a different proposition. For the Rolex side of that discussion, see the Rolex GMT-Master II collection. For general context on how auction houses treat watches at this level, the departments at Phillips and Sotheby's are useful reference points, which we cite for market background only, not as a source of prices for this watch.

For chronometer standards, the independent Swiss body COSC explains how movements are certified, and the Swiss watch industry federation explains the Swiss Made rules. Neither publishes anything specific to this reference, so treat them as background for reading a spec sheet.

Quick answers

How much is the Tudor Black Bay 58 GMT M79018V-0006?

Bizak's sourced catalogue listed it at US$38,475 on September 29, 2026, brand new and sourced to order. That is a dated observation, and the final price is confirmed before purchase.

What size is the Black Bay 58 GMT in yellow gold?

The case is 39 mm in 18K yellow gold, on a matching gold bracelet. That is 2 mm smaller than the 41 mm Black Bay GMT.

Does the M79018V-0006 have a second time zone?

Yes. It is a GMT model, so a 24-hour hand and 24-hour bezel let you read a second time zone against local time.

Is the gold Black Bay 58 GMT better than the steel one?

It is a different watch rather than a better one. Gold gives a richer look and more weight; steel is lighter, tougher and easier to wear every day.

Does Bizak hold the M79018V-0006 ready for delivery?

No. Bizak sources it to order, and we confirm the specific watch, photographs, papers and final price before you commit.

Request a Tudor M79018V-0006 sourcing quote

If you want this reference, send the details through our sourcing enquiry form, with your budget and timing. See the catalogue entry for the Tudor Black Bay 58 GMT M79018V-0006, browse the Tudor collection or the yellow gold watches collection, or sell or trade a watch toward it.

Related reading: Watch nicknames explained · Rolex Pepsi GMT-Master II · Best first Rolex · GMT-Master II 126710BLNR guide.