Strap for Chronomat Automatic 36 Stainless Steel - Diamond / Green / Rouleaux

The Breitling Chronomat 36 A10380591L1A1 has a lug width of 18mm. This measurement refers to the internal distance between the two lugs of the case and is the key parameter when selecting a compatible replacement strap. It is advisable to verify this with a digital calliper before purchasing.

For the Chronomat 36 in stainless steel, a padded alligator strap in vegetable-tanned leather represents the most coherent choice given the watch's technical yet refined character. Alternatively, smooth calf leather with visible stitching suits everyday wear, whilst vulcanised rubber is ideal for sporting contexts. The correct width is 18mm at the lug and typically 16mm at the buckle end for a well-proportioned closure.

To replace the strap, the spring bar connecting the strap to the case lugs must be removed. A fine-tipped spring bar tool is inserted into the slot of the retractable spring located inside the lug. Care should be taken not to scratch the stainless steel case: it is advisable to protect the surface with masking tape or to entrust the operation to a watchmaker or the Casati Milano atelier.

Yes, any strap with an 18mm lug width is technically compatible with the Chronomat 36 A10380591L1A1, provided the spring bar is the standard 1.8mm diameter. The handcrafted straps by Casati Milano and those available online at milanostraps.it are produced to this standard measurement and can replace the original bracelet or standard strap without any case modifications.

The lifespan of a leather strap depends on the material, tanning process and usage. A quality handcrafted alligator strap in vegetable tanning lasts on average between 3 and 5 years with regular use, developing a distinctive patina over time. Calf leather offers a similar lifespan but is more sensitive to moisture. To maximise the strap's life, prolonged exposure to water and perspiration should be avoided, and the watch stored on a watch cushion when not worn. Casati Milano offers an 18-month guarantee against manufacturing defects.