Technical Archive

Breitling
Super Chronomat EB0136251M1S1— lug 20mm

Breitling Super Chronomat EB0136251M1S1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Super Chronomat B01 44 Titanium / Grey / Rubber Rouleaux

Artisanal Note

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

Technical Specifications

Breitling EB0136251M1S1
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

EB0136251M1S1

Movement

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

The Heritage

The Super Chronomat represents the modern evolution of the Breitling chronograph line. It features the in-house B01 automatic chronograph movement with column-wheel function and chronometer certification. The movement offers hour, minute, small second, date and chronograph indications.

FAQ

What is the lug width of the Breitling Super Chronomat EB0136251M1S1?

The Breitling Super Chronomat EB0136251M1S1 has a lug width of 20mm. This measurement is taken internally between the two lugs of the case and determines compatibility with any aftermarket or replacement strap.

What is the best strap for the Breitling Super Chronomat EB0136251M1S1?

For the Super Chronomat in titanium and ceramic, the most suitable materials are vegetable-tanned alligator — which develops a distinctive patina over time — shell cordovan for a more refined and structured aesthetic, and vulcanised rubber for sporting use. All straps must feature a 20mm attachment width.

How do you change the strap on the Breitling Super Chronomat EB0136251M1S1?

The strap is replaced by removing the spring bars from the lugs using a pointed spring bar tool. The Super Chronomat's lugs have a robust profile: a tool with a protected tip is recommended to avoid scratching the titanium surface. The operation takes only a few minutes and does not require professional watchmaking assistance.

Are there aftermarket straps compatible with the Breitling Super Chronomat EB0136251M1S1?

Yes, any strap with a 20mm attachment is technically compatible. For the best result, straps with a slightly curved end or calibrated padding are preferable, as they follow the profile of the titanium lugs more accurately. Milano Straps offers a selection of handcrafted 20mm straps compatible with this reference.

How long does a leather strap last on a Breitling Super Chronomat EB0136251M1S1?

The lifespan of a leather strap depends on the material, care routine, and frequency of use. A quality vegetable-tanned alligator strap, maintained regularly with leather conditioner, typically lasts 3–5 years of daily wear. Shell cordovan, due to its dense and compact fibre structure, tends to retain its shape longer. Prolonged exposure to water and perspiration significantly reduces the strap's service life.