Tudor Black Bay FKM Rubber Diver Strap

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

FKM fluoroelastomer rubber in a straight-end diver profile. No deployant clasp. No sailcloth texture. No complication. Just the material that serious dive straps are made from, cut in the shape that dive watches have worn since the 1960s. On the Black Bay, this is the strap that matches the watch's original intent. A tool watch on a tool strap.

FKM is the material standard for high-performance rubber. The same class of compound used in aerospace seals and industrial environments where standard rubber cracks, hardens, and fails. It resists UV exposure, saltwater, heat, sweat, and daily abrasion without fading or degrading. Standard rubber ages. FKM does not. On a Black Bay rated to 200m, the strap handles everything the case can.

The straight-end profile sits clean against the Black Bay case with a minimal, functional look. No curved ends. No integrated fit. Just a clean lug-to-strap transition that suits the Black Bay's no-nonsense tool watch character. It is lighter than the factory bracelet, more breathable than leather, and more comfortable in warm conditions than any metal option.

Ten colourways. Black is the default. Navy pairs naturally with the BB58 Blue and the GMT Pepsi bezel. Green complements the BB58's gilt accents and the emerging green dial references in the Tudor lineup. Grey works across silver and black dials. Orange and red are for sport and contrast. Dark brown and beige add warmth for casual wear. White is the statement option on dark-dial references.

Quick-release spring bars pre-installed for tool-free strap changes. Polished stainless steel buckle.

Key Features:

• Premium FKM fluoroelastomer rubber
• UV-resistant, saltwater-resistant, heat-resistant
• Classic straight-end diver profile
• Quick-release spring bars pre-installed
• Polished stainless steel buckle
• 10 colourways: Black, Grey, Navy, Blue, Dark Brown, Beige, Orange, Red, Green, White
• Available in 20mm and 22mm lug widths

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)

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 Pelagos 39 uses 21mm, which is not available in this strap. 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.

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 FKM rubber diver strap
• Polished stainless steel buckle
• Quick-release spring bars (pre-installed)
• Watch not included

All Tudor Straps → | Tudor Sailcloth Deployant → | Tudor Calfskin Leather → | Best Tudor NATO Straps Guide →