Encyclopedia / Tudor / Black Bay 58 GMT
Current deal · verified Oct 19, 2026, 10:32 PM ET
$4,700 List $5,525
Save $825 (15%) · new · Jomashop
Ref. M7939G1A0NRU-0001 · In stock (per Jomashop)
Brand new from Jomashop, a grey-market (non-authorized) dealer, so expect the store's warranty (Jomashop lists '2 Year Jomashop Warranty') rather than the brand's. Also checked: WatchMaxx $5,244 (10:36 PM ET). 'List' is the retail figure the dealer displays; I could not confirm it on the brand's own US site. Prices change fast; check the store before you buy.
Price comparison: fixed-price listings
| Store | Condition | Box & papers | Asking price | Link | Checked |
|---|---|---|---|---|---|
| Jomashop | new | Yes* | $4,700 | View | Oct 19, 2026 |
| WatchMaxx | new | Yes* | $5,244 | View | Oct 19, 2026 |
| Watchfinder | pre-owned | Yes | $5,275 | View | Oct 19, 2026 |
Fixed-price (buy-now) asking prices in USD for ref. M7939G1A0NRU-0001, cheapest new and cheapest pre-owned with box and papers per store, sorted low to high and checked Oct 19, 2026 (ET). Buy-now listings only. Pre-owned listings are shown only when the listing states box and papers. * New from a grey-market dealer: comes boxed, but the warranty card may be the dealer's rather than the brand's. Chrono24 rows are individual third-party marketplace sellers. Prices change fast; confirm with the store.
What it really costs
| Market | Price | Source |
|---|---|---|
| List price per Jomashop & WatchMaxx | $5,525 | jomashop.com |
| New at Jomashop | $4,700 | Jomashop |
| New at WatchMaxx | $5,244 | WatchMaxx |
| Pre-owned (Chrono24 asks) | about $4,200 – $5,650 (median ~$4,850, 60 listings sampled) | Chrono24 |
All prices in USD, checked Oct 19, 2026 (ET). Pre-owned ranges are the middle 80% of asking prices on the first Chrono24 results page for that ref (about 60 listings, used and some unworn), fixed-price listings only. Grey-market = brand-new from a non-authorized dealer.
Buying guide
Key references
| Ref. | What it is | US retail |
|---|---|---|
| M7939G1A0NRU-0001 | Black Bay 58 GMT "Coke" Automatic 39mm Black Dial Men's Watch | $5,525 |
Which one I'd pick
58 GMT or Black Bay GMT? 39 mm vs 41 mm. The Pepsi Black Bay GMT is cheaper at list; pick the 58 GMT for size.
What to check before you buy
- Warranty: grey-market new watches usually carry the dealer's warranty, not the brand's. Ask which one you get and whether the brand's warranty card is included.
- Exact reference: dial colour, size and strap change the price. Match the full ref (M7939G1A0NRU-0001) before comparing deals.
- Fakes and red flags: be wary of prices far below the ranges above, stock photos only, or sellers who won't show the caseback, serial and papers.
Alternatives worth a look
- Tudor Black Bay GMT: The 41 mm Pepsi version. (41 mm steel, Manufacture Calibre MT5652 (GMT), retail $5,275 (m79830rb-0001, per Tudor))
- Rolex GMT-Master II: The Rolex original. (40 mm Oystersteel, Calibre 3285, retail $11,800 (126710BLNR-0003 and 126710GRNR-0004, Oyster bracelet))
- Tudor Black Bay 58: The no-GMT 58 diver. (39 mm stainless steel, Calibre MT5400-U, retail From $4,975 (rubber); $5,225–$5,350 on bracelet)
History
Tudor says the name 'The Tudor' was first registered as a brand in 1926 on behalf of Rolex founder Hans Wilsdorf.
The Black Bay 58 GMT M7939G1A0NRU-0001 is a 39 mm GMT with a black dial, per Jomashop's listing.
Specifications
| Brand | Tudor |
|---|---|
| Model | Black Bay 58 GMT |
| Key references | M7939G1A0NRU-0001 |
| Launch year | Not confirmed |
| Case | 39 mm Stainless Steel |
| Thickness | 12.8 mm |
| Band width | 20 mm |
| Crystal | Scratch Resistant Sapphire |
| Bezel | Bi-directional Rotating |
| Bezel material | Stainless Steel |
| Dial | Black |
| Strap/bracelet | Stainless Steel |
| Functions | Date, Hour, Minute, Second |
| Movement | Tudor Calibre MT5450-U, automatic |
| Power reserve | About 65 hours |
| Water resistance | 200 m |
| Approx. US retail (Oct 2026) | $5,525 (list price per Jomashop & WatchMaxx) |
Specs from the retailer (Jomashop/WatchMaxx) or brand product page linked above for the main reference; see our research notes for which. Retail prices are list prices, not market value, and change often.
Highlights
- 39 mm case
- GMT function
- 'Coke' red/black bezel
FAQ
How much is the Tudor Black Bay 58 GMT?
List price per Jomashop & WatchMaxx: $5,525. New, the best verified price was $4,700 at Jomashop (checked Oct 19, 2026, 10:32 PM ET). Pre-owned asks on Chrono24 mostly ran $4,200 to $5,650.
What movement does the Black Bay 58 GMT use?
The M7939G1A0NRU-0001 checked here uses the Tudor Calibre MT5450-U (automatic) with about 65 hours of power reserve.
How big is the Black Bay 58 GMT?
39 mm Stainless Steel, 12.8 mm thick.
Is the Black Bay 58 GMT water resistant?
Yes, it's rated to 200 m.
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Get the free weekly issuePrices and availability last checked Oct 19, 2026. No affiliate links: I don't earn anything if you buy. Sources are listed in our research notes and linked above.