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Tudor Black Bay Specifications
| Reference | M7941A1A0RU-0001, M7941A1A0NU-0001 |
|---|---|
| Case Size | 41mm |
| Lug Width | 22mm |
| Lug-to-Lug | 50mm |
| Thickness | 14.8mm |
| Case Material | stainless steel |
| Crystal | sapphire with anti-reflective coating |
| Water Resistance | 200m |
| Movement | MT5602 (automatic) |
| Bezel | unidirectional rotating dive bezel (aluminum insert) |
| Crown | screw-down |
| Case Back | screw-down (solid steel) |
| Price Range | $3,450-$3,775 |
Compatible Straps for the Tudor Black Bay
The Black Bay uses a 22mm Lug Width and is compatible with the following strap types.
| Type | Recommended Brand | Why It Works | Price Range | Link |
|---|---|---|---|---|
| NATO/ZULU | Tudor OEM | Classic look, easy to swap, fits 22mm lugs | $15–$80 | |
| leather | Erika's Originals | Dresses up the watch, fits 22mm lugs | $15–$80 | |
| rubber/silicone | Barton | Water-resistant, comfortable for daily wear | $15–$80 | |
| OEM stainless steel bracelet | Delugs | Compatible with 22mm attachment | $15–$80 | |
| OEM fabric strap | Veblenist | Compatible with 22mm attachment | $15–$80 |
Replacement Parts for the Tudor Black Bay
| Part | Description | Compatibility Note |
|---|---|---|
| crystal | Protective cover over the dial | Fits 41mm case |
| bezel insert | Outer ring marking | Matches unidirectional rotating dive bezel (aluminum insert) configuration |
| crown | Time-setting knob on case side | screw-down type |
| spring bars | Pins that hold the strap to the case | 22mm, 1.5mm diameter recommended |
| bracelet clasp | Replacement component | Check compatibility with Black Bay |
| case back gasket | Seal that maintains water resistance | Required for 200m WR rating |
Modding the Tudor Black Bay
The Black Bay is a popular platform for modding. Here are the most common modifications.
- strap swap — Upgrade to a premium aftermarket strap or metal bracelet.
- OEM bracelet to NATO or leather — Upgrade to a premium aftermarket strap or metal bracelet.
Frequently Asked Questions
What lug width is the Tudor Black Bay 41mm?
The Black Bay 41mm has a 22mm lug width.
Is the Tudor Black Bay too thick?
At 14.8mm, the Black Bay is on the thick side. However, its curved lugs and relatively short lug-to-lug help it sit closer to the wrist than the specs suggest.
Does Tudor use an in-house movement?
Yes. The Black Bay uses the Tudor MT5602 in-house caliber with a 70-hour power reserve and COSC chronometer certification.