Technical Archive

Breitling
Montbrillant RB013012.G736.724P— lug 20mm

Breitling Montbrillant RB013012.G736.724P: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Montbrillant 01 Red Gold / Mercury Silver / Croco

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling RB013012.G736.724P
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

RB013012.G736.724P

Movement

Breitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer

The Heritage

The Breitling Montbrillant features the in-house manufactured B01 automatic movement with chronograph function and chronometer certification. The movement integrates hours, minutes, small seconds, date, and column-wheel chronograph. The watch has 20mm lugs and the reference RB013012.G736.724P.

FAQ

What is the lug width of the Breitling Montbrillant RB013012.G736.724P?

The Breitling Montbrillant RB013012.G736.724P has a lug width of 20mm. This is the measurement to specify when purchasing any compatible aftermarket strap. To verify it, measure the internal distance between the two lugs using a digital calliper.

What is the best strap for the Breitling Montbrillant RB013012.G736.724P in red gold?

For the 18k red gold version with blue dial, the most coherent pairing is a cognac or tobacco brown alligator strap with vegetable tanning, which complements the warm tonality of the case. Alternatively, a bordeaux shell cordovan offers a compact grain and a character patina. For a more sporting look, a blue and grey nylon NATO echoes the dial's colour palette.

How do you change the strap on a Breitling Montbrillant?

The strap on a Breitling Montbrillant is removed using a spring bar tool or fine-tipped lever, sliding out the spring bar that secures the strap to the case lugs. Care should be taken to avoid scratching the red gold case: use a protective cloth and, if unfamiliar with the process, entrust the operation to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Montbrillant RB013012.G736.724P?

Yes. Any strap with a 20mm attachment width is technically compatible with the Montbrillant RB013012.G736.724P, provided it uses standard spring bars. Milano Straps offers a curated selection of 20mm straps in alligator, calf leather, shell cordovan, NATO and rubber, handcrafted and available in bespoke versions through Casati Milano.

How long does a leather strap last on a Breitling Montbrillant?

The lifespan of a leather strap depends on leather quality, frequency of use and exposure to perspiration and moisture. A high-quality alligator or shell cordovan strap, maintained regularly with appropriate products, can last between three and six years with daily wear. Vegetable-tanned straps develop a personal patina over time and gradually soften whilst retaining structural integrity for years.