Strap for Flight Timer R4118 Limited Edition

The lug width (ansa width) of the Oris Flight Timer 01 674 7583 4084-Set is 22mm. This measurement represents the distance between the two spring bars that connect the strap to the watch case. To verify this measurement accurately, use a digital calliper and measure the distance between the two internal holes on the case where the spring bars insert.

The ideal strap depends on the intended use case. For formal and daily wear, a vegetable-tanned alligator strap in brown or black tones emphasises elegance whilst maintaining the aviator character. For an authentic pilot aesthetic, a navy aviator NATO is the historic choice. For maximum robustness and versatility, a vegetable-tanned calf offers the best balance between aesthetics and durability. FKM rubber remains ideal for high-humidity environments and active pursuits.

Obtain a spring bar removal tool. Position the watch securely, insert the tool's tip into the small slot beneath one of the spring bars, apply gentle pressure to release the internal spring, then extract the bar. Repeat on the other side. Insert the new bars into the replacement strap, position them in the same holes on the case, and press until they click into place. Verify the strap is secure before wearing.

Yes, completely. The essential requirement is that the strap is designed for a 22mm lug width. Milano Straps offers a curated selection of artisanal straps in compatible dimensions, crafted from premium materials including alligator, vegetable-tanned calf, NATO, and FKM rubber. Always verify the lug width before purchase to ensure compatibility.

A leather strap's lifespan depends on frequency of use, tanning method, and maintenance practice. A vegetable-tanned alligator strap, with moderate daily wear and occasional natural balm treatment, typically lasts 5–8 years. A vegetable-tanned calf, being softer, may require replacement after 3–5 years of intensive use. FKM rubber, by comparison, remains functional for 8–10 years before stiffening occurs. Storage in dry, UV-protected environments significantly extends durability.