Strap for Aquis Date 39.5 Stainless Steel / Black / Rubber

The lug width is 21mm, corresponding to the distance between the attachment pins of the case. This measurement ensures that any aftermarket strap integrates perfectly with the ergonomic proportions of this 39.5mm diameter tool watch. You can verify it by measuring the distance between the centre of one pin and the other on the case: it must be exactly 21mm.

The choice depends on use: for daily elegance, an alligator strap in vegetable-tanned leather, tobacco brown tone, communicates authority without sacrificing the diver character. For diving and water use, a cotton-nylon NATO or black rubber offer complete resistance and practicality. A vegetable-tanned calf leather represents the ideal compromise between urban aesthetics and function.

Obtain a removal tool or pointed instrument (ballpoint pen tip, knife point): gently push the pin from the opposite side of the strap to be removed. The pin will slide through the case and the strap will detach. For new mounting, align the strap holes with the pins, insert the pin from the opposite side and push until it locks. Verify that the strap does not oscillate sideways: if it does, the lug width measurement may be incorrect.

Yes, all straps with 21mm lug width are compatible. Milano Straps offers a selection of artisanal straps in alligator, calf, shell cordovan, NATO and rubber certified for this measurement. Quality aftermarket ensures aesthetic variety while maintaining constructive precision: no adjustment or filing required.

A strap in natural vegetable-tanned leather lasts 4-8 years with daily use and regular maintenance. Frequent exposure to salt water, chlorine and humidity accelerates ageing: if you use your Oris in regular dives, consider rotating between leather straps (urban use) and NATO/rubber (water use). A dark patina and micro-scratches indicate aesthetic maturity, not structural wear: the strap remains functional as long as the leather maintains elasticity.