Strap for Divers Sixty-Five 40 Redbar Limited Edition

The lug width is 20 millimetres. This measurement corresponds to the distance between the two spring bar attachments on the case (centre to centre), which is an industry standard for tool watches in this category. Any aftermarket strap must respect this dimension rigorously to ensure geometric and functional compatibility.

The choice depends on intended use. For frequent diving and swimming, an FKM (Viton) rubber strap with satin grain is the supreme solution: it dries rapidly, does not absorb salt-water odours, and maintains flexibility at extreme temperatures. For balanced freshwater and urban wear, a vegetable-tanned alligator strap offers decade-long durability and patina that dialogues with the case's bronze. A black ballistic nylon NATO emphasises the model's brutal functionality.

Position the watch on a soft cloth. Locate the two small metal pins (spring bars) protruding from the case at 12 and 6 o'clock. Use a dedicated removal tool to gently push the pin inward, creating space to extract the old strap. Once removed, insert the new 20mm strap, aligning the holes with the pins, then release the tool allowing the pins to re-engage automatically. Verify the attachment before wear.

Yes, any strap fitted with a 20mm lug width is compatible. However, geometric compatibility does not guarantee aesthetic compatibility: the Divers 65 benefits from straps whose profile and thickness align with the model's identity. Materials such as vegetable-tanned alligator, technical rubber, and black ballistic NATO deliver visually harmonious results. Avoid straps that are too thin (below 3mm) or excessively glossy, as these conflict with the bronze's matte patina.

Longevity depends on construction quality and environmental exposure. A well-maintained vegetable-tanned alligator strap lasts 8–12 years with moderate use. If frequently exposed to salt or chlorinated water, longevity reduces to 4–6 years. A regenerated calf strap lasts 3–5 years. FKM rubber resists 10+ years without significant degradation. Periodic maintenance (rapid drying after water contact, conditioning with natural waxes every six months) extends longevity considerably.