Strap for America's Cup 1

The Bremont AC-1 features a 22mm lug width. This dimension is critical for third-party strap compatibility. It is measured as the distance (in millimetres) between the two pins that connect the strap to the case lugs. Do not confuse this with the case diameter, which is 43mm for the AC-1.

This depends on intended use. For sailing and marine environments, genuine alligator (with stainless steel deployante) is the most reliable choice: the natural grain does not adhere to wet skin, and the fibre is inherently water-repellent. A NATO in cotton/nylon is the pragmatic solution if maximum robustness and ease of rinsing are priorities. Mid-grade leather is an aesthetic compromise for business-casual wear, albeit requiring more frequent maintenance.

The Bremont AC-1 uses a standard straight-lug system (pin bars). Using a spring bar tool, press the elastic pin from underneath, extract the right lug, then the left. Insert the new strap by aligning the lugs to the case holes. It is not necessary to remove the crown or open the caseback. The operation requires 2–3 minutes for those with experience.

Yes, straps with nominal 22mm lug width are compatible with the Bremont AC-1. However, some manufacturers have tolerances of ±0.2mm, so verification before purchase is advised. Milano Straps guarantees compatibility for all 22mm collection straps, physically tested against Bremont models.

The lifespan of a leather strap depends on material grade, frequency of use, and maintenance. A quality alligator strap (vegetable-tanned) lasts 5–8 years with regular care. Standard calf leather resists 2–4 years. NATO and rubber have no biological expiration and remain functional indefinitely, although rubber may lose elasticity after 8–10 years of continuous UV exposure.