Tudor
Tudor Heritage Black Bay Dark 79230DK
The Tudor Heritage Black Bay Dark (reference 79230DK) is a 41 mm stainless Steel watch with a black dial. It runs on the automatic caliber MT5602 with a 70-hour power reserve and is water resistant to 200 m. It was introduced in 2016.
Specifications
Case
- Reference
- 79230DK
- Collection
- Black Bay
- Case size
- 41 mm
- Case material
- Stainless Steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 200 m
- Bracelet / strap
- Stainless Steel (black PVD)
Dial and bezel
- Dial
- Black
- Bezel
- Rotating 60-min, Black PVD steel
Movement
- Movement
- Automatic
- Caliber
- MT5602
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
Production
- Production
- 2016 – today (discontinued)
Dial versions
This reference was made with these dials and finishes.
79230DK Black #0001
79230DK-0001
Black
79230DK Black #0003
79230DK-0003
Black
79230DK Black #0005
79230DK-0005
Black
79230DK Black #0006
79230DK-0006
Black
79230DK Black #0007
79230DK-0007
Black
79230DK Black #0008
79230DK-0008
Black
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 |
|---|---|---|---|---|---|
| 79230DK (This watch) | 41 mm | Stainless Steel | Black | MT5602 | 2016– |
| 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 Dark 79230DK?
- The Tudor Heritage Black Bay Dark 79230DK has a 41 mm case.
- What movement does the Tudor Heritage Black Bay Dark 79230DK use?
- It uses the automatic caliber MT5602, with a 70-hour power reserve.
- How water resistant is the Tudor Heritage Black Bay Dark 79230DK?
- It is water resistant to 200 metres.
- Is the Tudor Heritage Black Bay Dark 79230DK still in production?
- Discontinued.
- When did the Tudor Heritage Black Bay Dark 79230DK come out?
- It was introduced in 2016.
- What is the Tudor Heritage Black Bay Dark 79230DK made of?
- The case is stainless Steel. Bracelet or strap: Stainless Steel (black PVD).
Catalog facts checked October 2026.