Breitling
Chronomat 36 K103801A1A1K1— lug 18mm
Breitling Chronomat 36 K103801A1A1K1: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Breitling K103801A1A1K1The essential strap measurement.
Browse 18mm straps →K103801A1A1K1
Breitling caliber Caliber 10 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 18mm lug width of the Chronomat 36
FAQ
What is the lug width of the Breitling Chronomat 36 K103801A1A1K1?
The Breitling Chronomat 36 K103801A1A1K1 features lugs with an internal width of 18mm. This measurement should be taken at the inner edge of the lug with a calliper for accuracy. Any 18mm strap is compatible with this reference.
What is the best strap for the Breitling Chronomat 36 K103801A1A1K1 in yellow gold?
For the yellow gold variant of the Chronomat 36, a vegetable-tanned alligator strap in cognac, tobacco or bordeaux tones offers the most coherent pairing with the case material. Shell cordovan is an excellent daily-wear alternative, developing a natural patina over time. A yellow gold or gold PVD deployant clasp completes the combination while maintaining chromatic consistency with the case.
How do you change the strap on a Breitling Chronomat 36?
To replace the strap on the Chronomat 36, you will need a spring bar tool — a fork-shaped instrument used to compress the spring bars seated within the 18mm lugs. Care must be taken to avoid scratching the yellow gold case during the operation. If in doubt, it is advisable to consult a watchmaker or opt for a strap service that includes professional fitting.
Are there aftermarket straps compatible with the Breitling Chronomat 36 K103801A1A1K1?
Yes. The Chronomat 36 uses a standard spring bar lug attachment of 18mm, making it compatible with any aftermarket strap in that lug width. Milano Straps offers a curated selection of handcrafted leather, rubber and textile straps for 18mm lugs, with bespoke options available through the Casati Milano atelier.
How long does a leather strap last on a Breitling Chronomat 36?
The lifespan of a leather strap depends on the material, tanning method and frequency of use. A high-quality vegetable-tanned alligator strap, kept away from excessive moisture and perspiration, can last between 3 and 7 years while retaining its structural integrity. Shell cordovan, owing to its dense fibre structure, generally offers greater longevity and develops a distinctive patina that enhances its aesthetic value over time.