Strap for Divers Sixty-Five 40 Social Club Edition / Taipei

The lug width of the Oris Divers 65 01 733 7707 4051 OSC-TPE-Set is 20mm. This dimension is native to the model and reflects the authentic proportions of the original 1960s Divers 65. Measurement is performed by positioning a digital calliper perpendicular to the lug hole of the case, recording the internal distance between the case lugs. A 20mm lug width ensures visual balance on a 40mm diameter without aesthetic disproportion.

The material choice depends on intended usage. An alligator strap with vegetable tanning provides formal dignity whilst maintaining compatibility with civilian dress. Vegetable or bovine calf emphasizes the working-watch character, developing patina over time. Vulcanised rubber is ideal for frequent underwater use: it maintains grip in humid environments, does not absorb saltwater odours, and is easily sanitised. NATO fabric straps represent a compromise between aesthetic casualness and daily durability. All these materials are available in the 20mm size compatible with your Oris.

Strap replacement is a straightforward operation. Position the watch on a protected surface with the caseback facing upward, exposing the lug pins (also called spring bars). Using a dedicated spring bar tool, apply lateral pressure to the pin, disengage the lug from the original strap, and remove the strap. Insert the pins of the new strap into the lug holes of the case, ensuring they seat fully. Verify that the strap adheres firmly without lateral play. If available, consult your model's instruction manual for additional technical specifications.

Yes. Any strap with a 20mm lug width is compatible with the Oris Divers 65 01 733 7707 4051 OSC-TPE-Set, provided the spring bars have standard diameter (typically 1.8mm). Artisanal leather, NATO fabric and rubber straps from Milano Straps' 20mm collection have been specifically engineered for this dimension and guarantee perfect fit without play, preserving the aesthetic and functional integrity of the watch.

The lifespan of a leather strap depends on factors such as frequency of use, exposure to moisture, and the construction quality of the strap itself. An alligator or calf strap of artisanal quality, worn daily, typically maintains structural integrity for 3–5 years before requiring replacement. Vegetable-tanned leather develops natural patina over time, conferring aesthetic character; this patination does not compromise the strap's mechanical resistance. Avoid prolonged exposure to fresh or saltwater without subsequent drying, and apply occasional treatments with natural oils to maintain fibre elasticity. Predictable wear of fibres at points of repeated flexion is normal and does not constitute manufacturing defect.