Strap for Oris Divers 65 01 733 7707 4051 OSC

The lug width of the Oris Divers Sixty-Five 01 733 7707 4051 OSC is 20mm. This measurement is standard for many compact dive watches and allows for a varied selection of artisanal straps. To verify, measure the distance between the horizontal lug pins: it must correspond exactly to 20mm. An incorrectly sized strap not only compromises aesthetics but may create constructional tension on the case.

We recommend four options: genuine alligator leather for formal elegance; vegetable-tanned calf for those who appreciate natural ageing patina; Cordura NATO fabric for diving and daily wear; Fluoro-Elastomer rubber for saltwater and chlorinated environments. The choice depends on primary use and dressing context. A dark brown alligator is versatile; grey NATO evokes the vintage aesthetic of the model.

Position the watch with the lug facing upward. Using a spring bar tool, gently apply leverage to compress the internal spring bar. Extract the pin from the case holes; repeat on the other side. Insert the new strap by threading the spring bar through the holes, ensuring both pin ends are correctly seated. Verify tension: the strap should not move laterally on the case. If inexperienced, consult a specialist watchmaker.

Yes, provided the lug width is exactly 20mm. Artisanal aftermarket straps often offer superior build quality and aesthetic versatility compared to original Oris straps, whilst maintaining full mechanical compatibility. Verify that the strap is fitted with robust spring bars (stainless steel) and that the passant matches the lug width.

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–5 years if occasionally exposed to fresh water and maintained regularly. Saltwater and chlorine dramatically reduce durability (12–18 months). For a dive watch, we recommend leather as a seasonal option spring–autumn, alternating with rubber or NATO during summer months or if frequenting pools. Periodic maintenance (cleaning, conditioning with specialised creams) significantly extends service life.