Technical Archive

Breitling
Chronomat B01 41 CB014012A722378C— lug 20mm

Breitling Chronomat B01 41 CB014012A722378C: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Chronomat 41

Artisanal Note

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

Technical Specifications

Breitling CB014012A722378C
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

CB014012A722378C

Movement

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

The Heritage

The Chronomat B01 41 is powered by the Breitling in-house automatic caliber B01 with a column-wheel chronograph function and chronometer certification. The movement offers hours, minutes, small seconds, date and chronograph indications. The case diameter measures 41mm as per the model denomination.

FAQ

What is the lug width of the Breitling Chronomat B01 41 CB014012A722378C?

The lug width of the Breitling Chronomat B01 41 CB014012A722378C is 20 mm. This measurement, taken between the inner walls of the lugs, determines compatibility with any aftermarket strap. For precise verification, a digital calliper placed between the inner lug walls is recommended.

What is the best strap for the Breitling Chronomat B01 41 in rose gold and steel?

For the Chronomat B01 41 in rose gold and steel, a vegetable-tanned alligator strap with belly grain is the most coherent choice given the watch's instrument-meets-luxury character. Navy blue or cognac tones best complement the material contrast of the case. Shell cordovan develops a distinguished patina over time. For sporting use, vulcanised rubber maintains the watch's aviation heritage without aesthetic compromise.

How do you change the strap on a Breitling Chronomat B01 41?

The strap on the Breitling Chronomat B01 41 is replaced via standard 20 mm spring bars housed in the lugs. A bifurcated spring bar tool is sufficient to release the bars and remove the existing strap. The operation can be carried out carefully by the wearer, or entrusted to a watchmaker or the Casati Milano atelier for a professional, case-safe replacement.

Are there aftermarket straps compatible with the Breitling Chronomat B01 41 CB014012A722378C?

Yes. Any strap with a 20 mm attachment is technically compatible with the Breitling Chronomat B01 41 CB014012A722378C. For the best aesthetic result, straps with a shaped head or slightly bevelled shoulders are preferable, as they integrate more naturally with the case geometry and rider tabs. Milano Straps offers a selection of handcrafted 20 mm compatible straps, available online or made to measure at the Casati Milano atelier.

How long does a leather strap last on a Breitling Chronomat B01 41?

The lifespan of a leather strap depends on material quality, care, and daily use. A quality vegetable-tanned alligator strap, kept away from excessive moisture and occasionally conditioned, typically lasts between three and five years with regular wear. Shell cordovan, owing to its dense fibrous structure, tends to last longer while developing a characteristic patina. Milano Straps straps carry an 18-month guarantee against manufacturing defects.