Strap for Montbrillant 01 Red Gold / Mercury Silver / Air Racer

The lug width of the Breitling Montbrillant RB013012.G736.223R is 20mm. This is the measurement to use when selecting any compatible aftermarket strap, whether in leather, rubber, or nylon.

For a case in 18-carat red gold such as the Montbrillant's, the most suitable materials are vegetable-tanned alligator (ideally in cognac brown or midnight blue) and smooth European calfskin. Both complement the chromatic warmth of or rouge without overwhelming the wrist. Shell cordovan is the most durable and long-term investment choice.

The strap on the Breitling Montbrillant is replaced using a fine-tipped spring bar tool. The 20mm spring bars must be disengaged from the lugs with care to avoid scratching the red gold case. The operation is fully reversible and does not require a watchmaker, provided the correct tool is used and the watch rests on a soft surface during the procedure.

Yes. Any strap with a 20mm attachment and standard spring bars is compatible with the Breitling Montbrillant RB013012.G736.223R. Milano Straps offers a curated selection of handcrafted leather, rubber, and nylon straps in this width, with finishes appropriate for a red gold case.

The lifespan of a leather strap depends on hide quality, tanning method, and daily usage. A high-grade vegetable-tanned alligator strap, with regular care (avoiding prolonged water exposure and rotating with other straps), typically lasts 3 to 5 years whilst developing a distinguished patina. Smooth calfskin of mid-range quality tends to show wear between 18 and 36 months. Shell cordovan, owing to its compact and non-porous structure, is the most durable, often exceeding 5 to 7 years of regular wear.