Strap for Super Chronomat 38 Stainless Steel - Red Gold / Pink / Rubber Rouleaux

The Breitling Super Chronomat U17356531L1S1 features a lug width of 20mm. This measurement is taken with a digital calliper positioned internally between the two lugs, perpendicular to the case centre axis. The value is confirmed in the official Breitling technical specification sheet and is consistent across the entire Super Chronomat 38mm range.

Given the hybrid case construction combining ceramic, red gold and stainless steel, the most effective choices are a glossy Hornback alligator strap in black — creating a sharp contrast against the gold accents — or a vegetable-tanned calf strap in tobacco or havana tones, which complements the warmth of the red gold and develops a natural patina over time. Shell cordovan in burgundy is a third option for understated character. All these materials are available as bespoke 20mm straps from Casati Milano.

The strap is removed using a dedicated spring bar tool or a fine flat-head screwdriver, acting on the spring bars housed within the lugs. It is advisable to rest the case on a soft pad to protect the ceramic bezel during the operation. Fitting the new strap involves inserting one spring bar end into the lug, compressing the second pin and hooking the other lug. The operation can be performed without a watchmaker provided the correct tools are used.

Yes. Any strap with a 20mm lug width and an 18mm buckle end is technically compatible with the Super Chronomat U17356531L1S1. Milanostraps.it offers a curated range of handcrafted 20mm straps made by Casati Milano, with options to customise length, taper thickness, stitching style and closure type (buckle or deployant clasp). All straps are produced in Italy using selected hides.

Longevity depends on leather type, care routine and frequency of wear. A vegetable-tanned calf strap, well maintained with occasional conditioning cream and rotated with other straps, typically lasts 2 to 4 years before showing structural wear. Alligator and shell cordovan, owing to their higher fibre density, offer superior longevity — often beyond 5 years. Casati Milano straps carry an 18-month warranty against manufacturing defects.