Strap for Superocean Heritage II B20 Automatic 42 Amsterdam Edition

The Breitling Superocean Heritage UB20106A1B1S1 features 22 mm lug width. This is the standard measurement for the 42 mm version of the Superocean Heritage family and can be verified by placing a millimetre ruler between the two lug pillars, flush against the case.

The ideal choice depends on the intended use. For formal occasions, a polished alligator strap in black or mahogany brown complements the ceramic and red gold case construction. For aquatic or sporting use, vulcanised rubber is the most consistent option given the watch's diving heritage. A heavyweight nylon NATO strap suits a casual, heritage-inspired aesthetic.

Strap replacement requires a spring bar tool — either a forked lever or a flat spade type. Insert the tool between the lug and the spring bar end, compress the spring bar, and slide the strap free. Fit the replacement strap at the same 22 mm width. No case opening is required and the watch's water resistance rating is unaffected.

Yes. Any strap with a 22 mm attachment width is technically compatible. Milanostraps.it offers a curated selection of handcrafted leather, rubber and nylon straps in 22 mm, designed to suit the lug geometry of the Superocean Heritage. A bespoke service is also available through Casati Milano.

A high-quality leather strap with vegetable tanning and proper finishing typically lasts between 2 and 4 years under daily use. Longevity depends on exposure to perspiration, water and UV radiation. Avoiding immersion and applying a neutral leather conditioner periodically will significantly extend the strap's service life. Casati Milano straps carry an 18-month guarantee against manufacturing defects.