Strap for Chronomat Automatic 36 Stainless Steel - Red Gold / Green / South Sea / Bracelet

The Breitling Chronomat 36 U10380611L1U1 has a lug width of 20 mm. This measurement is taken with a digital calliper placed between the two inner lug tips and is the specification required when purchasing a compatible aftermarket strap.

For the red gold and steel variant, a vegetable-tanned alligator strap in cognac, tobacco or navy blue offers the best balance of aesthetic coherence and material quality. A steel or red gold PVD deployant clasp completes the pairing in a manner consistent with the bimetallic palette of the reference.

The Chronomat 36 with its integrated Rouleaux bracelet requires the original bracelet to be removed using a dedicated bracelet-pin tool. Once removed, the 20 mm lug accepts any standard spring-bar strap. It is advisable to entrust the first swap to a watchmaker to avoid scratching the red gold surfaces.

Yes. Any strap with a 20 mm attachment is technically compatible. Milano Straps offers a selection of handcrafted straps in alligator, calf, shell cordovan and NATO, specifically finished for the 20 mm format with shaped ends to ensure a clean fit on the Chronomat 36 lugs.

The lifespan of a leather strap depends on frequency of use, exposure to perspiration and moisture, and the quality of the tanning process. A quality vegetable-tanned alligator strap, with ordinary care, retains its structural and aesthetic integrity for 3 to 5 years of regular use. Casati Milano straps carry an 18-month manufacturing defect warranty.