Tudor
Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU
The Tudor Black Bay Ceramic (Master Chronometer) (reference 7941A1ACNU) is a 41 mm Matt black ceramic watch with a charcoal dial. It runs on the automatic caliber MT5602-U with a 70-hour power reserve and is water resistant to 200 m.
Specifications
Case
- Reference
- 7941A1ACNU
- Collection
- Black Bay
- Case size
- 41 mm
- Thickness
- 13.6 mm
- Case material
- Matt black ceramic
- Water resistance
- 200 m
- Bracelet / strap
- Ceramic
Dial and bezel
- Dial
- Charcoal
- Bezel
- Unidirectional black-PVD steel bezel, black ceramic sunray insert
Movement
- Movement
- Automatic
- Caliber
- MT5602-U
- Power reserve
- 70 hours
Production
- Production
- Current
Dial versions
This reference was made with these dials and finishes.
7941A1ACNU Charcoal
M7941A1ACNU-0001
Sunray, domed
How it compares within the Black Bay family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 7941A1ACNU (This watch) | 41 mm | Matt black ceramic | Charcoal | MT5602-U | — |
| 79310N | 39 mm | Steel | Yellow | MT5813 | 2025– |
| 7939G1A0NRU | 39 mm | Stainless Steel | Black | MT5450-U | 2024– |
| 7941A1A0NU | 41 mm | Stainless Steel | Black | MT5602-U | 2023– |
| 79600 | 31 mm | Stainless Steel | — | MT5201 | 2023– |
| 79640 | 36 mm | Stainless Steel | — | MT5400 | 2023– |
| 79660 | 39 mm | Stainless Steel | — | MT5602 | 2023– |
| 79680 | 41 mm | Stainless Steel | — | MT5601 | 2023– |
| 79833MN | 41 mm | Steel | Black | MT5652 | 2022– |
About the Black Bay family
The Black Bay was introduced in 2012 as the Heritage Black Bay, a dive watch drawing on Tudor's 1950s Submariners with a domed crystal, a large crown without guards and snowflake hands. It quickly grew into Tudor's main family.
The first models used an ETA caliber; from 2016 the Black Bay moved to the in-house MT5602 and related calibers. The family includes the 39 mm Black Bay Fifty-Eight of 2018, the GMT, the Chrono, Bronze versions, the Pro, the smaller Black Bay 54 and Master Chronometer models from 2023. Dealers note the size, bezel colour, caliber generation and bracelet or strap, since many versions share the same look.
Quick answers
- What size is the Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU?
- The Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU has a 41 mm case, 13.6 mm thick.
- What movement does the Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU use?
- It uses the automatic caliber MT5602-U, with a 70-hour power reserve.
- How water resistant is the Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU?
- It is water resistant to 200 metres.
- Is the Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU still in production?
- Yes, it is a current reference.
- What is the Tudor Black Bay Ceramic (Master Chronometer) 7941A1ACNU made of?
- The case is Matt black ceramic. Bracelet or strap: Ceramic.
Catalog facts checked October 2026.