Tudor Black Bay 58 7939A1A0NU-0003
Ref. 7939A1A0NU-0003 · Matt black dial · In production
- Case39 mm
- Thick11.7 mm
- Water res.200 m
- MovementAutomatic
- CrystalSapphire
Tudor Black Bay 58 7939A1A0NU-0003 size, specs and price at a glance
The Tudor Black Bay 58 7939A1A0NU-0003 is 39 mm wide and 11.7 mm thick. Tudor does not publish its lug-to-lug length. It takes 20 mm straps and ships on a rubber strap. Inside is the MT5400-U automatic calibre, water resistant to 200 m.
Strap shopping? See our Tudor lug width chart.
Overview
The Tudor 7939A1A0NU-0003 is a diver watch from the Black Bay 58 collection. It has a 39 mm stainless steel case, 11.7 mm thick. Tudor lists the dial as matt black. Inside is an automatic movement (calibre MT5400-U) with 65 h of power reserve. You also get 200 m water resistance, a sapphire crystal and a rubber strap.
Who it suits
- Wrists of roughly 15.5–17.4 cm (6.1–6.9 in), by our Watch Finder sizing guide
- Swimming, snorkelling and diving
Strengths
- Sapphire crystal resists scratches
- 200 m water resistance
- Screw-down crown helps keep water out
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 39 mm | tudorwatch.com · 3 Nov 2026 |
|---|---|---|
| Thickness | 11.7 mm | tudorwatch.com · 3 Nov 2026 |
| Lug-to-lug | Not published by Tudor | |
| Case material | Stainless steel | tudorwatch.com · 3 Nov 2026 |
| Crystal | Sapphire | tudorwatch.com · 3 Nov 2026 |
| Bezel | Unidirectional rotating | tudorwatch.com · 3 Nov 2026 |
| Water resistance | 200 m | tudorwatch.com · 3 Nov 2026 |
| Screw-down crown | Yes | tudorwatch.com · 3 Nov 2026 |
Dial
| Dial colour | Matt black | tudorwatch.com · 3 Nov 2026 |
|---|
Movement
| Movement type | Automatic | tudorwatch.com · 3 Nov 2026 |
|---|---|---|
| Calibre | MT5400-U | tudorwatch.com · 3 Nov 2026 |
| Power reserve | 65 h | tudorwatch.com · 3 Nov 2026 |
| Certification | METAS Master Chronometer | tudorwatch.com · 3 Nov 2026 |
Strap / Bracelet
| Bracelet / strap | Rubber strap | tudorwatch.com · 3 Nov 2026 |
|---|---|---|
| Lug width | 20 mm | tudorwatch.com · 3 Nov 2026 |
Other
| Production status | In production | tudorwatch.com · 3 Nov 2026 |
|---|---|---|
| Style (our classification) | Diver | our classification |
Specs are summarised in our own words from the brand's product page. Each row links its source and the date we checked it. Fields we haven't verified are left out rather than guessed.
Variants with the same specs
Same case, movement and bracelet or strap; typically a different dial or finish.
More in Black Bay 58
Similar alternatives
Picked with Watch Finder's style tags and sizing.
Questions about the Tudor Black Bay 58 7939A1A0NU-0003
How big is the Tudor Black Bay 58 7939A1A0NU-0003?
The case is 39 mm wide, 11.7 mm thick.
What movement does the Tudor Black Bay 58 7939A1A0NU-0003 use?
It uses the MT5400-U calibre, a automatic movement with 65 h of power reserve.
Can I swim with the Tudor Black Bay 58 7939A1A0NU-0003?
Yes. It is rated to 200 m.
Will the Tudor Black Bay 58 7939A1A0NU-0003 fit my wrist?
By our sizing guide it sits best on wrists of about 15.5–17.4 cm (6.1–6.9 in). Use the fit checker on this page to test your own wrist.
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