Tudor
Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN
The Tudor Heritage Black Bay Ceramic One Only Watch (reference 7921/001CN) is a 41 mm titanium, ceramic, stainless steel watch with a black dial. It runs on the automatic caliber MT5602 and is water resistant to 200 m. It was introduced in 2019.
Specifications
Case
- Reference
- 7921/001CN
- Collection
- Black Bay
- Case size
- 41 mm
- Case material
- Titanium, ceramic, stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 200 m
- Bracelet / strap
- Rubber strap with alligator top application
Dial and bezel
- Dial
- Black
- Bezel
- PVD titanium with black ceramic insert
Movement
- Movement
- Automatic
- Caliber
- MT5602
Production
- Production
- 2019 – today (limited)
Dial versions
This reference was made with these dials and finishes.
7921/001CN Black
7921/001CN
Matte
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 |
|---|---|---|---|---|---|
| 7921/001CN (This watch) | 41 mm | Titanium, ceramic, stainless steel | Black | MT5602 | 2019– |
| 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 Heritage Black Bay Ceramic One Only Watch 7921/001CN?
- The Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN has a 41 mm case.
- What movement does the Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN use?
- It uses the automatic caliber MT5602.
- How water resistant is the Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN?
- It is water resistant to 200 metres.
- Is the Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN still in production?
- Limited.
- When did the Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN come out?
- It was introduced in 2019.
- What is the Tudor Heritage Black Bay Ceramic One Only Watch 7921/001CN made of?
- The case is titanium, ceramic, stainless steel. Bracelet or strap: Rubber strap with alligator top application.
Catalog facts checked October 2026.