Tudor · Black Bay GMT · 41mm · burgundy and blue · on Amazon

Tudor’s Pepsi. A real traveller’s GMT for a third of the Rolex.

The Black Bay GMT is the watch Tudor launched the same day Rolex brought back the steel Pepsi GMT-Master II, and it is the one you can actually buy: a 41mm steel case, a bidirectional bezel with a matt burgundy and blue 24-hour insert, a black domed dial with the snowflake hour hand and a slim red-tipped 24-hour hand, a date at three, on the riveted steel bracelet. Inside is Tudor’s manufacture MT5652, a true traveller’s GMT where the hour hand jumps independently, a COSC chronometer with about 70 hours of reserve, and the case is rated to 200 metres. Sold on Amazon by a marketplace seller shipping from Japan, listed under Tudor’s own price when we read it.

This Black Bay GMT on Amazon$2,500–$5,000 band
Illustrative render — hero view of the Tudor Black Bay GMT 41mm M79830RB-0001 (steel, burgundy and blue bezel, black dial, riveted steel bracelet)

Case

41mm, 14.6mm thick, 22mm lugs, polished and satin steel, bidirectional 48-notch steel bezel with matt burgundy and blue anodised aluminium 24-hour disc, screw-down crown, 200m

Movement

Tudor manufacture calibre MT5652, automatic GMT with independently adjustable hour hand, COSC chronometer, about 70 h

Dial

Black, domed, luminous markers, snowflake hour hand, red-tipped 24-hour hand, date at 3

Bracelet

Riveted steel bracelet, folding clasp with safety catch

Reference

M79830RB-0001

Seller

MS-TR JAPAN, shipping from Japan, marketplace seller; only 2 left; 7 ratings when read; 30-day returns; condition not stated

A flyer’s GMT, not a caller’s

There are two kinds of GMT watch. In the cheaper kind the 24-hour hand is the one you set independently, which is fine for checking home time. In the Black Bay GMT, like the Rolex it resembles, the local hour hand jumps in one-hour steps without stopping the watch, so when you land you click the hour forward and the date follows. That is the MT5652, Tudor’s own movement, with a silicon balance spring, a COSC certificate and about 70 hours of reserve.

The bezel is the Pepsi: burgundy for the day hours, blue for the night, in matt anodised aluminium on a 48-click bidirectional ring. The case is the 41mm Black Bay case at 14.6mm thick, so it is a substantial watch, and the riveted bracelet is the vintage-style one.

Illustrative render — a flyer’s gmt, not a caller’s of the Tudor Black Bay GMT 41mm M79830RB-0001 (steel, burgundy and blue bezel, black dial, riveted steel bracelet)

Reading the listing

The listing carries the full reference, M79830RB-0001, in the title; the model row just says Heritage Black Bay. The photograph shows the two-colour bezel, the snowflake hand, the red-tipped 24-hour hand, the date at three and the riveted bracelet. The case size, thickness, lug width, calibre, its jumping hour hand, COSC certification, reserve, 200 metres and the bezel construction are Tudor’s published figures for the reference.

The seller is MS-TR JAPAN, a marketplace seller shipping from Japan with two left when we read it, and the rows we read do not state whether the watch is new with Tudor’s five-year guarantee; ask, and ask for the box and card. Nothing here was measured on the watch.

Illustrative render — reading the listing of the Tudor Black Bay GMT 41mm M79830RB-0001 (steel, burgundy and blue bezel, black dial, riveted steel bracelet)

Buying it on Amazon

This is a regular Amazon listing from a marketplace seller with Amazon’s 30-day return window; it is not a Luxury Stores pre-owned unit and the seller has not published a condition. The second button opens the live search for Black Bay GMTs in case this one has sold.

Black Bays have resold for under new and close to what pre-owned buyers paid, sometimes more, sometimes less; that is a pattern, not a promise, and nothing here is investment advice.

Illustrative render — buying it on amazon of the Tudor Black Bay GMT 41mm M79830RB-0001 (steel, burgundy and blue bezel, black dial, riveted steel bracelet)

Specs

Reference
M79830RB-0001
Case size
41mm, 14.6mm thick, 22mm lugs
Case material
Stainless steel, polished and satin; bidirectional 48-notch steel bezel with matt burgundy and blue anodised aluminium 24-hour disc; screw-down crown with satin-brushed tube
Movement
Tudor manufacture calibre MT5652, automatic GMT with independently adjustable hour hand, COSC chronometer, bidirectional rotor
Caliber type
Tudor manufacture MT5652, COSC
Crystal
Domed sapphire
Water resistance
200m (20 ATM)
Power reserve
About 70 hours
Complications
GMT (24-hour hand), date
Origin
Swiss Made

Specifications as published by Tudor. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-13.

Verdict

The Black Bay GMT with the burgundy and blue bezel and the MT5652 traveller’s movement, on Amazon from a Japanese marketplace seller under Tudor’s list price: the Pepsi GMT you can buy today, with the reference on the listing.

Strengths

  • True traveller’s GMT: the hour hand jumps independently
  • Manufacture MT5652, COSC, about 70 hours; 200 metres
  • The Pepsi bezel at a third of the Rolex price
  • Listed under Tudor’s own price when read; 7 ratings on Amazon

Trade-offs

  • Ships from Japan; condition and guarantee not stated, ask
  • 14.6mm thick; a tall watch
  • Aluminium bezel insert scratches more easily than ceramic
  • Only two in stock when read

Buy it if

Someone who travels and wants the GMT that works the way a pilot’s watch should, in the colours everyone recognises.

Skip it if

You want a slim watch, a ceramic bezel, or a stated condition.

This Black Bay GMT on Amazon$2,500–$5,000 band

FAQ

Yes. The MT5652 is a traveller’s GMT: the local hour hand moves in one-hour steps without stopping the seconds, and the date follows it. The 24-hour hand tracks home time against the bezel.

Sources

Researched and last updated 2026-09-13. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.

Tudor Black Bay GMT 41mm M79830RB-0001 (steel, burgundy and blue bezel, black dial, riveted steel bracelet)

Reference M79830RB-0001 · $2,500–$5,000

Prices and availability change; the band above is a research figure, so check the current listing.

Affiliate Disclosure

The Horologist is reader-supported. When you buy through links on our site, we may earn a commission at no extra cost to you. This never influences our editorial recommendations — every timepiece is selected on merit alone.

Complete the look

A fresh strap changes the whole watch.

Not ready today? Adding it to your cart keeps your pick saved.