Strap for Chronomat Automatic 36 Stainless Steel / Red Gold / MOP / Rouleaux

The Breitling Chronomat 36 U10380101A2U1 has a lug width of 18mm. Before purchasing any aftermarket strap, it is advisable to confirm this measurement directly on the case lugs using a calliper, as minor production tolerances may occur.

For a two-tone stainless steel and red gold case paired with a mother-of-pearl dial, straps in vegetable-tanned alligator in cognac or bordeaux tones offer the most refined aesthetic balance. Shell cordovan in burgundy is a more exclusive choice. For active use, vulcanised rubber in anthracite retains both functionality and character. A deployant clasp in steel or gold-plating completes the metallic symmetry of the case.

Strap replacement requires a fine-tipped springbar tool to release the spring bars housed within the lugs. On the Chronomat 36, the lugs are slightly curved, so a precision tool is recommended to avoid scratching the steel and red gold case. The operation can be carried out carefully at home or entrusted to a watchmaker or the Casati Milano atelier.

Yes. Any strap with an 18mm attachment and standard spring bars is technically compatible. Milanostraps.it offers a curated selection of handcrafted 18mm straps in various materials — from leather to rubber — designed to fit the curved lug geometry of the Chronomat 36 without lateral play.

Longevity depends on the material and frequency of use. A vegetable-tanned alligator strap, maintained with a conditioning cream every three to four months and dried after moisture exposure, can last between three and six years. Shell cordovan offers above-average durability due to its dense fibrous structure. Casati Milano straps carry an 18-month warranty against manufacturing defects.