Strap for Chronomat Colt 44 Automatic Black / Rubber / Folding

The lug width of the Breitling Colt A17388101B1S1 is 22mm. This measurement corresponds to the internal distance between the two lugs at the strap attachment point. To verify it independently, use a digital calliper placed internally between the lugs at the base of the case.

The choice depends on the intended use. For outdoor or sport contexts, a ballistic nylon NATO strap or a vulcanised rubber strap offer water resistance and ease of use. For daily wear or business settings, Tuscan vegetable-tanned calf leather or alligator are the most appropriate choices, developing a natural patina over time that complements the Colt's instrumental character.

The strap is replaced using a flat-tipped spring bar tool or a dedicated lever instrument. The 22mm spring bars are compressed laterally to release them from the case lugs. Care must be taken to avoid scratching the bezel or case; if in doubt, it is advisable to consult a watchmaker or the Casati Milano atelier.

Yes. Any strap with a 22mm attachment and standard spring bars is compatible with the Breitling Colt A17388101B1S1. Milanostraps.it offers a curated selection of handcrafted 22mm straps in various materials — calf leather, alligator, NATO, rubber — all manufactured to precise dimensions for a correct fit without adapters.

The lifespan of a leather strap depends on the quality of the hide, maintenance routine, and frequency of use. A high-quality vegetable-tanned calf strap, conditioned regularly with appropriate products and kept away from prolonged water exposure, can last between 3 and 5 years while retaining structural and aesthetic integrity. Casati Milano straps carry an 18-month warranty against manufacturing defects.