Strap for Montbrillant Datora

The lug width of the Breitling Montbrillant A2133012B993731P is 22mm. This measurement is taken with a digital calliper across the internal gap between the two lugs on the 12 o'clock side. The buckle end width is typically narrower — usually 20mm or 18mm — depending on the taper of the chosen strap.

For the 43mm stainless steel Montbrillant, the most suitable straps are polished alligator leather in navy blue or dark grey for a formal profile, vegetable-tanned calf leather for a vintage patina over time, NATO nylon for the aeronautical spirit, and vulcanised rubber for sport or summer use. The ideal choice depends on the dial colour and intended context of wear.

To replace the strap on the Montbrillant, you will need a fine-tipped or spatula-style spring bar tool. The Montbrillant features squared, prominent lugs — protect the case with a soft cloth during the operation. Compress one spring bar, remove one end of the strap, then repeat on the other side. Fit the new strap by engaging the spring bars into the lug holes. The procedure takes approximately two minutes and requires no professional equipment.

Yes, there is a wide range of quality aftermarket straps compatible with the 22mm lug width of the Montbrillant. Milano Straps produces bespoke handcrafted straps in leather, alligator, vegetable-tanned calf and rubber, proportioned for 43mm cases. It is important to verify the taper and thickness of the strap, as the Montbrillant's lug geometry requires a strap with an appropriate profile.

The lifespan of a leather strap depends on the quality of the tanning process, daily use and care. A high-quality vegetable-tanned calf leather strap, worn daily and properly maintained (conditioning cream every 3–4 months, dried after contact with water), typically lasts between 18 and 36 months. Alligator leather, owing to its denser structure, can last 3 to 5 years. Milano Straps products carry an 18-month warranty against manufacturing defects.