Strap for Oris Big Crown 01 735 7660 4064

The lug width of the Oris Big Crown 01 735 7660 4064 is 22 mm. This measurement is taken internally between the two metal lugs that attach the case to the strap. Always verify directly on the watch case itself, not from an already-mounted strap, to ensure a precise fit with any aftermarket strap.

For the Big Crown 01 735 7660 4064, we recommend vegetable-tanned leather straps in natural brown or alligator for maximum aesthetic and historical coherence. Vegetable-tanned leather develops a natural patina over time, evoking classic aviation heritage; alligator offers superior durability and a fascinating natural grain. For those preferring practicality, NATO straps in dark blue or black, or vulcanised rubber straps, are equally compatible and offer versatility of use.

To change the strap, you will need a spring bar tool (or a flat-blade battery opener), available from specialist retailers. Position the watch so that the lugs are easily accessible, insert the spring bar tool into the gap between the case and the lug pin, and apply gentle pressure to disengage it. Repeat for the second pin. When mounting the new 22 mm strap, ensure both lugs click firmly into place. If uncertain, contact an authorised Oris dealer or watch repair centre.

Yes, provided the strap is manufactured with a 22 mm lug width. Oris does not use non-standard lug pin lengths on the Big Crown 01 735 7660 4064, so any commercially available 22 mm strap (in leather, rubber or fabric) fits perfectly. We recommend always verifying the technical specifications with the seller before purchase and contacting the manufacturer if you have any doubts.

A high-quality artisanal leather strap, subject to ordinary maintenance (frequent drying, avoiding prolonged moisture), lasts on average 3–5 years before requiring replacement. An alligator or shell cordovan strap extends to 7–10 years. Longevity varies based on use (frequent vs. occasional), climatic conditions and frequency of perspiration. Vegetable-tanned leather tends to darken and patina naturally, an aspect appreciated by those who value visual evolution. If the strap develops tears or fibre weakening, it is time to replace it.