Strap for Montbrillant 01 Red Gold / Mercury Silver / Croco

The lug width of the Breitling Montbrillant RB013012.G710.728P is 20 mm. This measurement refers to the internal distance between the two lugs of the case and determines compatibility with any replacement strap. For precise verification, a digital calliper placed on the inner side of the lugs is recommended.

For an 18-carat red gold case such as that of the Montbrillant, a vegetable-tanned alligator strap in cognac, dark brown or bordeaux tones represents the most coherent pairing from both an aesthetic and constructional standpoint. Shell cordovan and smooth calf leather in warm hues are valid alternatives for a more understated look. A red gold deployant clasp completes the ensemble while maintaining metallic consistency.

To replace the strap on the Montbrillant, you will need a 20 mm spring bar and a double-tipped spring bar tool. By inserting the tool tip into the lateral hole of the lug, the spring bar is compressed and the strap is released. Care should be taken to avoid scratching the red gold case: it is advisable to protect the lugs with a soft cloth or to entrust the operation to a watchmaker for the first few changes.

Yes, any strap with a 20 mm lug width is compatible with the Montbrillant RB013012.G710.728P. Milano Straps offers a selection of handcrafted straps in alligator, calf leather, shell cordovan and rubber specifically available in the 20 mm size, hand-finished in Italy using carefully selected materials, as a high-quality alternative to original Breitling straps.

The lifespan of a leather strap depends on the material, frequency of use and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, worn daily, has an average lifespan of 2–4 years with ordinary maintenance (periodic cleaning, nourishing cream). Shell cordovan, owing to its dense fibrous structure, tends to last longer while developing a characteristic patina. The Casati Milano warranty covers manufacturing defects for 18 months.