Tudor
Tudor Heritage Black Bay Blue 79230B
The Tudor Heritage Black Bay Blue (reference 79230B) 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
- 79230B
- Collection
- Black Bay
- Case size
- 41 mm
- Case material
- Stainless Steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 200 m
- Bracelet / strap
- Stainless Steel
Dial and bezel
- Dial
- Black
- Bezel
- Rotating 60-min, Blue aluminium
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.
79230B Black #0001
79230B-0001
Black
79230B Black #0002
79230B-0002
Black
79230B Black #0006
79230B-0006
Black
79230B Black #0007
79230B-0007
Black
79230B Black #0008
79230B-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 |
|---|---|---|---|---|---|
| 79230B (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 Blue 79230B?
- The Tudor Heritage Black Bay Blue 79230B has a 41 mm case.
- What movement does the Tudor Heritage Black Bay Blue 79230B use?
- It uses the automatic caliber MT5602, with a 70-hour power reserve.
- How water resistant is the Tudor Heritage Black Bay Blue 79230B?
- It is water resistant to 200 metres.
- Is the Tudor Heritage Black Bay Blue 79230B still in production?
- Discontinued.
- When did the Tudor Heritage Black Bay Blue 79230B come out?
- It was introduced in 2016.
- What is the Tudor Heritage Black Bay Blue 79230B made of?
- The case is stainless Steel. Bracelet or strap: Stainless Steel.
Catalog facts checked October 2026.