Strap for Pilot Automatic Chronograph Black / Bracelet

The lug width of the Formex Pilot 1100.1.8020.100 is 22 millimetres. This measurement is taken from the inside of one lug to the inside of the opposite lug, excluding the metal spring bars that attach the strap to the case. An incorrect measurement will compromise the entire wearing ergonomics.

The choice depends on your intended use and personal aesthetic preference. For formal wear, we recommend French or American alligator with vegetable tanning, which enhances the professional appearance whilst respecting the instrument's spirit. For rugged daily use, Annonay calf leather or robust canvas NATO straps work excellently. For humid or pressurised environments, fluoroelastomer FKM rubber offers reliability and practicality.

Strap replacement requires removal of the spring bars that connect the strap to the case lugs. Use a dedicated spring bar tool to gently compress the pin and extract it from the lug. Insert the new strap's spring bar into the same lug, ensuring the click of engagement is positive and audible. If uncertain, consult a certified watch repair service.

Yes, entirely. Thanks to the standardised 22mm lug width, the Formex Pilot 1100.1.8020.100 is fully compatible with artisanal quality straps produced by specialised workshops such as Milano Straps. Compatibility is guaranteed by lug width standardisation. We recommend selecting straps crafted from certified raw materials—French alligator, shell cordovan, robust cotton—with hand-stitched construction.

Strap lifespan varies according to usage, climate and material quality. A high-grade vegetable-tanned leather strap, worn daily under normal conditions, typically lasts 3 to 5 years. In high-humidity or pressurised environments, longevity may diminish. We recommend periodically rotating straps and protecting them from prolonged moisture exposure. For extreme environments, rubber or NATO alternatives are preferable.