Strap for Chronomat Colt 44 Automatic Blue / Calf / Folding

The Breitling Colt A17388101C1X4 features a 22mm lug width. This measurement is taken with a digital calliper between the inner faces of the lugs, at the point where the strap makes contact. It is one of the most common sizes in the professional segment and offers excellent compatibility with aftermarket and bespoke straps.

The ideal choice depends on the context of use. For formal or semi-formal occasions, a vegetable-tanned alligator strap with a matte finish complements the brushed steel case. For daily or outdoor use, a high-density NATO or vulcanised rubber strap offers durability and moisture resistance. Shell cordovan is the most characterful option, developing a rich patina over time.

The strap is removed using a springbar tool, inserting the tip into the lug slots to compress the springbars. The Colt 44's straight lugs are accessible and allow the operation to be completed in approximately two minutes. It can be performed independently with care, or entrusted to a watchmaker or to the Casati Milano atelier.

Yes. Any strap with a 22mm attachment and flat ends is compatible with the Breitling Colt A17388101C1X4. Milano Straps offers a curated selection of handcrafted leather, NATO, and rubber straps in 22mm, with full customisation available through the Casati Milano atelier.

Longevity depends on the material and wearing habits. A vegetable-tanned calfskin strap, properly maintained — kept away from prolonged moisture and occasionally conditioned — typically lasts 2 to 4 years. High-quality cordovan or alligator can exceed 5 years, developing a distinctive patina. Casati Milano straps come with an 18-month manufacturing defect warranty.