Strap for Divers Sixty-Five 39 Stainless Steel / Blue / Bracelet

The lug width of the Oris Divers 65 is 19mm. This specific measurement is not standard in modern strap catalogues and requires careful sourcing from specialised suppliers. To verify compatibility, measure the internal space between the lug shoulders with a millimetre ruler: it must match exactly 19mm so the strap fits perfectly without lateral play.

Artisanally tanned alligator is the optimal choice for those seeking elegance and longevity: it resists humidity, develops natural patina, and lasts 8-10 years. For a versatile profile, vegetable-tanned calf offers robust construction with an estimated lifespan of 7-8 years. If you are an active diver, vulcanised rubber is the only rational choice, resisting salt and pressure. Nylon NATO straps remain ideal for seasonal rotation.

The necessary tool is a spring bar tool or pin removal device. Position the watch with the lug facing upwards, insert the tool under the spring bar retainer, apply gentle downward pressure to retract the spring, then extract the pin. The reverse process allows insertion of the new strap. For screw-down lugs, use an appropriate screwdriver rotating anticlockwise. If uncertain, entrust the operation to a watchmaker.

Yes, provided the lug width is exactly 19mm. Always verify that the strap is specifically labelled for this measurement. A strap of greater width (20mm or 22mm) will not physically fit into the lug, whilst smaller dimensions create unwanted lateral play. Artisanally made custom straps guarantee the best fitting, especially carefully finished alligators or calfskins.

A quality artisan alligator strap lasts 8-10 years with regular maintenance (beeswax 2-3 times annually). Vegetable-tanned calf resists for 7-8 years. The durability range depends on frequency of use, moisture exposure and climate. If exposed to prolonged soaking (scuba diving), leather deteriorates within 2-3 years: in this case, prefer vulcanised rubber. A stainless steel deployante buckle maintains mechanical integrity for 15-20 years.