Strap for Altitude Officier Classic

The lug width of the Altitude Officer 101OBIX is 20mm. This measurement is critical for ensuring compatibility with any aftermarket strap. To verify it, use a digital calliper and measure the distance between the lugs internally, at the exact point where the strap is inserted.

There is no universally "best" strap, but recommendations vary according to intended use. For formal wear, black or dark brown alligator emphasises the instrument-like character. For daily versatility, vegetable-tanned calf will develop a natural patina over time. For a sportier aesthetic, a technical fabric NATO maintains the original aeronautical spirit.

The Altitude Officer features integrated lugs with spring bar attachments. To remove the original strap, use a spring bar tool, inserting the tip into the designated slot. Compress the internal retention mechanism and slide the strap outward. Repeat for both lugs. To install a new strap, insert the spring bars into the lugs and push until you feel the locking click.

Yes, provided the strap is specifically sized for a 20mm lug width. Avoid straps with excessive thickness that could create tension on the case. Straps in natural leather or fabric are preferable to excessively rigid rubber options, to preserve the Altitude Officer's aesthetic elegance.

A quality natural leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with moderate daily use. Longevity depends on ambient humidity, frequency of use and maintenance. A vegetable-tanned strap develops patina progressively, becoming softer and more structurally resilient over time. Replacement is recommended when the leather begins to show cracks or structural thinning.