Tudor Black Bay Embossed Alligator Leather Strap with Deployant Clasp

This strap fits any Tudor with a 20mm, 21mm, or 22mm lug width. Black Bay 58, Black Bay 41, Black Bay GMT, Black Bay Chrono, Black Bay Pro, Pelagos, and Ranger. Select your size above and it works.

Embossed alligator calfskin leather with a brushed stainless steel deployant clasp. The alligator embossing is applied to high-grade Italian calfskin, producing the scale pattern and surface texture of exotic leather without the CITES restrictions or price point of genuine crocodile. On the wrist it reads as dress leather. In practice it handles everyday wear. The calfskin is supple from the outset, softens naturally over time, and holds its structure across the full length of the strap rather than creasing at a single point.

The deployant clasp is what separates this from every embossed leather strap with a standard pin buckle. A pin buckle concentrates stress at the same adjustment hole every time the watch is worn. The leather weakens, the hole elongates, and the strap ages unevenly. A deployant clasp removes that entirely. It opens and closes through a folding mechanism, keeps the leather in consistent shape, and creates a cleaner profile on the wrist. Once sized, the watch goes on and off in seconds.

Three colourways. Black is the formal default and works across every Tudor reference. Brown suits the BB58's gilt indices and warm lume, adding the kind of dressed warmth that the Black Bay was built for. Navy sits between formal and casual, complementing blue bezels on the BB58 Blue and GMT without matching them exactly.

Smooth lining runs the full length of the strap for all-day comfort. Quick-release spring bars included for tool-free fitting. Complementary clasp engraving available at checkout. Up to three characters, laser engraved into the stainless steel.

Key Features:

• Embossed alligator calfskin leather, made in Italy
• Brushed stainless steel deployant clasp, pre-fitted
• Smooth lining for all-day comfort
• Quick-release spring bars included
• 3 colourways: Black, Brown, Navy
• Available in 20mm, 21mm, and 22mm lug widths
• Complementary clasp engraving available

Tudor Compatibility Guide:

20mm: Black Bay 58 (ref. 79030, 79010), Black Bay 58 GMT, Black Bay 54 (ref. 79000), Black Bay 68 (ref. 79018), Black Bay Pro (ref. 79470), Ranger (ref. 79950), Monarch (ref. M2639)

21mm: Pelagos 39 (ref. 25407), Black Bay 39 (ref. 79660, 79663), Black Bay 41 METAS (selected refs)

22mm: Black Bay 41 (ref. 79680, 79683), Black Bay GMT 41 (ref. 79830, 79833), Black Bay Chrono (ref. 79360, 79363), Black Bay Ceramic, Pelagos 42 (ref. 25600, 25610)

This strap does not fit: The original Black Bay Bronze (ref. M79250) uses a non-standard 23mm lug width and is not compatible. The BB58 Bronze (ref. 79012) uses 20mm and fits. The Black Bay 36 uses 19mm and is not compatible.

Important: Tudor has introduced 21mm lug width on selected newer Black Bay 41 METAS-certified references (2025 onward). The standard BB41 (ref. 79680, 79683) remains 22mm. If you own a 2025 or later BB41, measure between the inner edges of both lugs to confirm whether your watch is 21mm or 22mm before ordering.

Use our on-page strap checker to confirm your exact reference before ordering.

What's included:

• 1x Embossed alligator calfskin leather strap (made in Italy)
• 1x Brushed stainless steel deployant clasp (pre-fitted)
• Quick-release spring bars
• Watch not included

All Tudor Straps → | Tudor Sailcloth Deployant → | Tudor Pueblo Leather → | Deployant Straps Guide →

Free tracked delivery

• Royal Mail Tracked, 1–2 working days
• Order by 3pm Monday to Friday and it ships the same day
• Weekend orders ship on Monday

Guaranteed next day – £9.95

• Royal Mail Special Delivery, by 1pm the next working day
• Order by 3pm Monday to Friday

Free FedEx Priority shipping on orders over $120 to the US, C$190 to Canada, A$200 to Australia, NZ$240 to New Zealand and £100 everywhere else. Below that, the cost is shown at checkout.

No fees on delivery

• US prices already include all import duties and taxes.
• Everywhere else, any duties and taxes are shown and paid at checkout.
• Either way the checkout total is final – nothing more to pay when it arrives.

Delivery times (FedEx, shipped from London – order by 2pm UK time Monday to Friday and it ships the same day)

• Europe: 1–2 working days
• United States and Canada: 2–3 working days
• Middle East and Asia: 2–4 working days
• Australia and New Zealand: 3–4 working days
• Rest of world: 3–5 working days

Full shipping policy

You have 14 days from delivery to start a return through our returns portal. Items must be unworn and in their original packaging. Personalised and engraved items can’t be returned.

Full returns policy