Tudor · Black Bay Chrono S&G · 41mm · gold bezel · fabric strap · on Amazon
The two-tone Black Bay Chrono, on fabric.
This is the Black Bay Chrono in steel and gold on the strap: reference M79363N-0003, a 41mm steel case with a solid 18k yellow gold bezel carrying a black tachymeter disc, solid gold crown and pushers, a black domed dial with two gilt-edged counters and snowflake hands, the date at six, on Tudor’s black fabric strap. Inside is the manufacture MT5813, a column-wheel chronograph with about 70 hours of reserve and a COSC certificate; 200 metres. Listed by a marketplace dealer on Amazon.

Case
41mm, 14.4mm thick, 22mm lugs, steel with polished and satin finish, fixed solid 18k yellow gold bezel with matt black anodised aluminium tachymeter disc, solid yellow gold screw-down crown and pushers, 200m
Listing: 41mm, 200m; Tudor M79363N
Movement
Tudor manufacture calibre MT5813, automatic column-wheel chronograph, COSC, about 70 h
Listing: automatic; Tudor
Dial
Black, domed, gilt-edged counters (45 minutes at 3, small seconds at 9), luminous markers, snowflake hands, date at 6
Listing: black dial; photograph; Tudor
Strap
Black fabric strap with buckle
Listing: fabric band; photograph; Tudor
Reference
M79363N-0003
Listing title and model row
Seller
Luxor Watches, marketplace seller; in stock; 30-day returns; condition not stated
Amazon buy box, 2026-09-14
Steel and gold, and the MT5813
S&G is Tudor’s shorthand for steel and gold: a steel case with a solid yellow gold bezel, crown and, on the chronograph, pushers. On the Black Bay Chrono S&G the bezel is solid 18k yellow gold with a black aluminium tachymeter disc, and the black dial with gilt-edged counters picks it up. It is the dressiest Black Bay Chrono, and on a strap it costs less than the steel one on a bracelet.
The MT5813 inside is the Breitling 01 rebuilt to Tudor’s spec, the calibre Breitling and Tudor exchanged in 2017 for Tudor’s MT5612; it is a column-wheel, vertical-clutch chronograph with 70 hours of reserve, and it is why the Black Bay Chrono is 14.4mm thick. The fabric strap is the lightest way to wear it and the cheapest way to buy it.

Reading the listing
The listing carries the reference M79363N-0003 in the title and model row and calls it a 41mm automatic chronograph with 200 metres, a black dial and a fabric band. The photograph shows the gold bezel, crown and pushers, the two-counter dial and the fabric strap. The thickness, lug width, calibre, COSC certification and reserve are Tudor’s published figures for the reference.
The seller is Luxor Watches, a marketplace seller. Ask the seller whether it is new with Tudor’s five-year guarantee card, and for the box; the rows we read do not say. Nothing here was measured on the watch.

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 Chronos in case this one has sold.
Black Bay Chronos 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.

Specs
- Reference
- M79363N-0003
- Case size
- 41mm, 14.4mm thick, 22mm lugs
- Case material
- Stainless steel, polished and satin finish; fixed solid 18k yellow gold bezel with matt black anodised aluminium tachymeter disc and yellow gold markings; solid yellow gold screw-down crown and pushers
- Movement
- Tudor manufacture calibre MT5813, automatic column-wheel chronograph, COSC chronometer, bidirectional rotor
- Caliber type
- Tudor manufacture MT5813, COSC
- Crystal
- Domed sapphire crystal
- Water resistance
- 200m (20 ATM)
- Power reserve
- About 70 hours
- Complications
- Chronograph (45 minutes at 3, small seconds at 9), date at 6
- Origin
- Swiss Made
Specifications as published by Tudor. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-14.
Verdict
Tudor’s Black Bay Chrono S&G on the fabric strap: solid gold bezel, crown and pushers, the MT5813 column-wheel chronograph and 200 metres, on Amazon from a marketplace dealer.
Strengths
- Solid 18k gold bezel, crown and pushers on a steel case
- MT5813 column-wheel chronograph, COSC, 70 hours
- 200 metres in a chronograph
- Full reference on the listing; Amazon’s return window
Trade-offs
- Condition and guarantee card not stated by the dealer; ask
- 14.4mm thick
- Fabric strap only; the bracelet version costs more
- Two-tone is a taste; the steel Chrono is on this page
Buy it if
Someone who wants the Black Bay Chrono with gold on it, on a strap.
Skip it if
You want all steel, a bracelet, or a stated condition.
FAQ
Tudor’s manufacture chronograph calibre, developed from the Breitling 01 in the two brands’ 2017 exchange: column wheel, vertical clutch, silicon hairspring, COSC certified, about 70 hours of reserve, with a 45-minute counter at 3 and small seconds at 9.
Compare
Sources
- Tudor Black Bay Chrono S&G M79363N-0003, official page
- Amazon marketplace listing (Luxor Watches), read 2026-09-14
Researched and last updated 2026-09-14. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.
Tudor Black Bay Chrono S&G 41mm M79363N-0003 (steel and yellow gold bezel, black dial, black fabric strap)
Reference M79363N-0003 · $5,000–$10,000
Prices and availability change; the band above is a research figure, so check the current listing.
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