Technical Archive

Breitling
Super Chronomat RB01365A1B1R1— lug 20mm

Breitling Super Chronomat RB01365A1B1R1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Super Chronomat B01 44 Red Gold / Black MOP / Rouleaux

Artisanal Note

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

Technical Specifications

Breitling RB01365A1B1R1
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

RB01365A1B1R1

Movement

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

The Heritage

The Super Chronomat features the in-house B01 automatic caliber with chronograph function and chronometer certification. The movement has a column-wheel and offers hours, minutes, small seconds, date and chronograph indications. The case features the crown and chronograph pushers with integrated side protectors in the design.

FAQ

What is the lug width of the Breitling Super Chronomat RB01365A1B1R1?

The lug width of the Breitling Super Chronomat RB01365A1B1R1 is 20mm. This measurement should be taken with a digital calliper between the two lugs, with the case lying flat on a surface, at the point of contact with the strap. This is the essential parameter for selecting a compatible aftermarket strap.

What is the best strap for the Breitling Super Chronomat RB01365A1B1R1?

For the Super Chronomat in red gold with a mother-of-pearl dial, a polished alligator leather strap is the most coherent pairing with the watch's formal register. Alternatively, vegetable-tanned calf leather offers breathability and develops an authentic patina over time. Shell cordovan, with its grain-free surface, is a refined choice that complements the warmth of red gold naturally. For sport or summer use, vulcanised rubber provides water resistance and wearing comfort.

How do I change the strap on the Breitling Super Chronomat RB01365A1B1R1?

The strap on the Super Chronomat is removed using a flat-tip or fork-style spring bar tool, by releasing the spring bars connecting the strap to the case lugs. It is advisable to work on a soft surface to protect the red gold case and ceramic bezel from scratches. If replacing the original integrated Rouleaux bracelet, we recommend entrusting the operation to an authorised watchmaker. The replacement strap must have a 20mm lug width.

Are there aftermarket straps compatible with the Breitling Super Chronomat RB01365A1B1R1?

Yes, aftermarket straps compatible with the Super Chronomat RB01365A1B1R1 are available in 20mm lug width. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, shell cordovan and rubber, available bespoke or in standard sizes. The Super Chronomat's lug geometry is standard at 20mm; however, it is advisable to verify the strap end curvature to ensure an optimal fit.

How long does a leather strap last on the Breitling Super Chronomat RB01365A1B1R1?

The lifespan of a leather strap depends on the material, tanning quality and frequency of use. A quality vegetable-tanned calf strap typically lasts 1–2 years with daily wear. Alligator leather, thanks to its compact scale structure, tends to last longer when kept away from moisture and perspiration. Shell cordovan is the most durable of the classic leathers. Milano Straps provides an 18-month guarantee on manufacturing defects for all its straps.