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

The lug width of the Breitling Chronomat 36 U10380611L1P1 is 18 mm. This measurement should be taken with a digital calliper, placing the tips inside the two lugs against their inner walls, for an accurate reading.

For the two-tone steel and red gold version, the most suitable materials are polished alligator in tobacco or cognac tones, and box-calf leather with a mirror finish. Shell cordovan is a refined alternative that develops a warm patina over time. For more dynamic use, a vulcanised rubber strap maintains the Chronomat's sporting character without sacrificing comfort.

Strap replacement on the Chronomat 36 requires a fine-tipped spring bar tool to remove the spring bars from the lugs. It is advisable to work on a soft cushion to protect the case from scratches. The lugs are slightly angled, so straps with straight or gently tapered ends are recommended to ensure a proper fit without stressing the lug tips.

Yes, any straight-end 18 mm strap is technically compatible. Milano Straps offers a curated selection of 18 mm straps in leather, rubber and nylon specifically assessed for this model. For a fully bespoke strap with a choice of leather and custom buckle, Casati Milano atelier provides an artisanal made-to-measure service.

Longevity depends on the material and frequency of use. A high-quality vegetable-tanned alligator strap, rotated with other straps, can last between three and five years while retaining good structural integrity. Regular contact with water and perspiration is the primary cause of degradation; the strap should not be worn during intense physical activity and should be left to dry away from direct heat sources.