Strap for Colt Quartz Blue / Bracelet

The Breitling Colt A7438010.C675.812A has a lug width of 20 mm. This measurement is taken between the two lugs at the point where the spring bar is inserted. Any strap with a 20 mm attachment width is compatible with this reference.

The ideal choice depends on the intended use. For formal occasions, a vegetable-tanned alligator strap complements the satin-finished steel case with refinement. For daily or active wear, a grained calfskin or technical nylon NATO strap honours the instrument-oriented character of the Colt. A deployant clasp is recommended for those who prioritise symmetry on the wrist and ease of fastening.

Strap replacement is carried out by removing the spring bars that secure the original strap to the case lugs. A bifurcated spring bar tool is required. The operation can be performed independently in a matter of minutes, or by a watchmaker, or at the Casati Milano atelier by appointment.

Yes. Any strap with a 20 mm attachment width is compatible with the Breitling Colt A7438010.C675.812A. MilanoStraps offers a curated selection of handcrafted leather, rubber and textile straps made specifically for this lug width, with finishes and materials chosen to complement the Colt's stainless steel case.

The lifespan of a leather strap depends on the quality of the hide, frequency of wear, and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, properly cared for, can last between three and six years. Shell cordovan, owing to the dense fibrous structure of the hide, typically lasts longer and develops a patina over time that enhances its aesthetic appeal.