Tudor Black Bay and Pelagos Strap Guide: Lug Widths by Model

Short answer: Tudor does not use one lug width across the range. The Black Bay 58 and Black Bay 54 take 20 mm straps, the Pelagos 39 takes 21 mm, and the Pelagos 42 and the earlier Black Bay 41 (ref. 79230) take 22 mm. The current Black Bay 41 (M7941A1A0RU) is listed at 21 mm. Always confirm your reference, or measure, before you order.
Tudor lug width table
| Model | Example reference | Case | Lug width |
|---|---|---|---|
| Black Bay 54 | M79000N | 37 mm | 20 mm |
| Black Bay 58 | M79030N, M79030B | 39 mm | 20 mm |
| Black Bay 41 (earlier) | 79230 | 41 mm | 22 mm |
| Black Bay 41 (current) | M7941A1A0RU | 41 mm | 21 mm |
| Pelagos 39 | M25407N | 39 mm | 21 mm |
| Pelagos 42 | 25600TN | 42 mm | 22 mm |
Some special editions differ (for example, some bronze Black Bay 58 versions are listed at 22 mm), so check your exact reference. For the Black Bay GMT, Chrono and other models we stock, measure the lugs; see our lug width guide.
Lugline straps compatible with Tudor
- FKM strap for Black Bay 58, 20 mm, $89, also in navy and olive
- FKM strap for Black Bay 54, $89
- Strap for Black Bay Heritage 41, $89
- Strap for Black Bay GMT and Black Bay Chrono, $89
- 1.8 mm spring bars for Black Bay 58, $15
We don't currently list a Pelagos-specific strap. A quality 22 mm strap from the 22 mm collection suits the Pelagos 42. See all Tudor-compatible straps.
FAQ
What lug width is the Tudor Black Bay 58?
20 mm.
What lug width is the Tudor Black Bay 41?
The earlier 79230 is 22 mm; the current M7941A1A0RU is listed at 21 mm. Check your reference.
What lug width is the Tudor Pelagos?
Pelagos 39 is 21 mm and Pelagos 42 is 22 mm.
Can I use a 20 mm strap on a 21 mm watch?
It will fit on the spring bars but leaves a visible gap. Use the correct width for the best look and security.
Is a rubber strap good for the Pelagos?
Yes. Rubber suits a dive watch: it handles water and sweat and dries quickly.
Lugline is an independent strap maker. Brand and model names are used only to describe compatibility; Lugline is not affiliated with, endorsed by or sponsored by Rolex, Omega, Swatch, Tudor or any other watch brand. Watch not included.