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The TUDOR Black Bay 41 Master Chronometer pairs a 41 mm steel case with the self-winding MT5602-U movement, COSC and METAS certification, a 70-hour power reserve, and 200 m water resistance. It is offered in multiple bezel and strap or bracelet configurations, so the reference matters when comparing details and US list prices. This is a specifications-and-buying guide, not a report of hands-on wear or independent timing tests.
Which Black Bay 41 Master Chronometer is this?
This article covers the steel Black Bay 41 Master Chronometer variants represented by TUDOR’s current product pages and its 2024 specification sheet. The cited burgundy-bezel model is reference M7941A1A0RU-0003; the black-bezel model is M7941A1A0NU-0001. TUDOR’s reference numbers include the leading “M,” while shortened references are sometimes used in listings.
The two cited references share the core movement and case specifications below. Bezel color and bracelet or strap configuration distinguish versions; verify the complete reference on a listing before comparing prices or ordering.
What are the specifications?
| Specification | TUDOR-listed detail |
|---|---|
| Case | Stainless steel, 41 mm in diameter; 13.6 mm thick on the current product pages |
| Lug width | 21 mm |
| Bezel | Unidirectional, graduated for 60 minutes; insert material and color depend on reference |
| Dial and crystal | Domed black dial; domed sapphire crystal |
| Crown and water resistance | Screw-down crown; 200 m (660 ft) |
| Movement | TUDOR manufacture calibre MT5602-U, self-winding with bidirectional rotor |
| Functions | Central hour, minute, and seconds hands; stop-seconds |
| Regulating system | Variable-inertia balance and non-magnetic silicon balance spring |
| Frequency | 28,800 beats per hour (4 Hz) |
| Power reserve | 70 hours, listed by TUDOR as certified |
| Movement dimensions | 31.8 mm diameter, 6.5 mm thick, and 25 jewels, according to TUDOR’s 2024 press specification sheet |
These are manufacturer specifications, not independent measurements. TUDOR’s current pages list case dimensions and water resistance, while the 2024 press sheet supplies the movement dimensions and jewel count. See the burgundy reference product page, the black reference product page, and TUDOR’s 2024 Black Bay specification sheet.
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- Tudor Black Bay 41mm Automatic Black Dial Men's Watch M7941A1A0NU-0002
What does Master Chronometer certification mean here?
TUDOR says METAS Master Chronometer certification covers precision, resistance to magnetic fields, waterproofness, and power reserve. Its product material also says the watch must meet Swiss Made criteria and that the movement must first be COSC-certified. The Black Bay 41 is described as carrying both COSC and METAS certification.
Certification describes a defined assessment; it should not be read as a guarantee of a particular rate on every owner’s wrist in every condition. TUDOR’s explanation is on its Black Bay 41 product page.
Rank #2
- Tudor Black Bay 41 Automatic Chronometer Anthracite Dial Men's Watch M79680-0001
How do the references and configurations compare?
TUDOR’s cited US product pages show the following configurations and suggested retail prices. These are listed prices on the pages consulted, not guaranteed transaction prices; TUDOR says prices and models may change.
| Configuration | Reference | US suggested retail price shown |
|---|---|---|
| Burgundy bezel, five-link steel bracelet | M7941A1A0RU-0003 | $5,325 |
| Black bezel, steel bracelet | M7941A1A0NU-0001 | $5,325 |
| Rubber strap configuration | Specific reference not established in the cited result | $5,075 |
The official materials also list three-link and five-link steel bracelet choices, as well as a rubber strap, with a T-fit clasp. The option set varies by reference, and the cited $5,075 rubber-strap result does not identify a specific reference here. Check the relevant product page for the exact configuration and current price before purchase.
Rank #3
- 41mm steel case with polished and satin finish
- Bidirectional rotatable bezel in steel with 24-hour graduated anodised aluminium disc
- Self-winding mechanical movement with 70 hour power reserve
Is the Black Bay 41 Master Chronometer worth considering?
Its clearest case is for a buyer who wants the stated combination of a 41 mm steel diver-style watch, 200 m water resistance, a 70-hour reserve, and third-party certification alongside COSC certification. There is also a meaningful aesthetic and practical choice between bezel color and steel bracelet or rubber strap, rather than a single universal configuration.
The official specifications cannot answer personal-fit questions such as how the 41 mm case wears on a particular wrist, whether the clasp is comfortable, or how legible the dial is in varied conditions. Those points need an in-person try-on or credible direct-use assessment. For a purchase comparison, confirm the reference, selected strap or bracelet, and current regional price rather than relying on a generic “Black Bay 41” listing.
Rank #4
- Tudor Heritage Black Bay S&G Automatic 41 mm Men's Watch M79733N-0007
Black Bay 41: 2024 versus 2023
The available official specification sheet here is for the 2024 Black Bay release, and the cited current product pages describe the Master Chronometer references above. They establish the specifications and configurations of those models, but do not provide a like-for-like 2023 model comparison. A year-on-year verdict would require identifying the exact 2023 reference and comparing its official specifications with the specific 2024 configuration.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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