Strap for Oris Divers 65 01 733 7707 4354

The lug width of the Oris Divers Sixty-Five 01 733 7707 4354 is 20 millimetres. This measurement represents the distance between the outer edges of the two lateral lugs where the strap attaches to the case. To verify this precisely, use a digital calliper, positioning the measurement perpendicular to the lugs. Should your particular example measure 19.5 mm, our 20 mm straps will still fit perfectly due to the natural elasticity of modern spring bar slots.

The recommendation depends on intended use and aesthetic preference. For frequent diving, we suggest an FKM or HNBR rubber strap: fully waterproof, zero moisture absorption, and resistant to saline treatments and solar oils. For daily elegance, alligator leather with vegetable tanning or Italian calfskin imparts sophistication to the oxidised bronze case. For tactical versatility, a high-thickness nylon NATO (1.6 mm minimum) offers ease of changing and robustness without compromise.

Changing the strap on an Oris Divers Sixty-Five follows the standard procedure for watches with fixed lugs. Procure a spring bar removal tool with thin, flat levers. Position the watch on a soft surface to prevent scratching. Insert the tool's lever into the small lateral hole beneath the lug, apply gentle upward pressure to compress the internal spring, then withdraw the pin from the hole. Repeat on the opposite side. Remove the old strap and insert the new one, aligning the pins within the lugs. Push until you hear an audible "click" indicating secure seating. If the pin is difficult to move, apply a small amount of light lubricating oil around the internal spring.

Yes, 20 mm aftermarket straps are fully compatible with your Oris Divers Sixty-Five, provided they are specifically designated for this lug width. A 22 mm or 18 mm strap will not fit correctly. Milano Straps supplies only 20 mm straps tested and dimensioned for this model. We recommend selecting manufacturers that clearly specify production tolerances and utilise Italian or Swiss-made spring bars: this guarantees longevity and impeccable fit.

Leather strap longevity depends on tanning method, thickness, and usage patterns. A quality alligator strap with vegetable tanning, used daily without frequent immersion, typically lasts 4–6 years before significant wear appears at the edges and spring bar slots. Italian calfskin, being softer, develops a visible patina after 6–12 months—this is not degradation but rather the natural "signature" of genuine leather. If your Oris is immersed frequently in saltwater or fresh water, limit leather strap exposure during those periods and switch to rubber. After water exposure, dry the leather strap promptly with a soft cloth and air-dry horizontally, never near direct heat sources.