Technical Archive

Breitling
Chronomat Evolution B1335611/A675— lug 20mm

Breitling Chronomat Evolution B1335611/A675: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Chronomat Evolution Stainless Steel / Yellow Gold / Silver - Roman

Artisanal Note

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

Technical Specifications

Breitling B1335611/A675
Lug Width
20 mm

The essential strap measurement.

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Reference

B1335611/A675

Movement

Breitling caliber Caliber 13 Hours, Minutes, Small Seconds | Date | Chronograph

The Heritage

The Chronomat Evolution B1335611/A675 is a 43.7 mm stainless steel and yellow gold chronograph designed in 2004, featuring the distinctive four rider tabs at 3, 6, 9 and 12 o'clock positions. It houses the Breitling Caliber 13 movement, based on the ETA 7750, with chronograph counters at 3 and 9, small seconds at 6, and date at 4:30. The 20 mm lug width accommodates leather or vulcanized rubber straps; alligator or vegetable-tanned calf leather are recommended materials for this two-tone model.

FAQ

What is the lug width of the Breitling Chronomat Evolution B1335611/A675?

The lug width of the Breitling Chronomat Evolution B1335611/A675 is 20 mm. This measurement, taken between the inner edges of the case lugs, determines compatibility with any aftermarket or replacement strap.

What is the best strap for the Breitling Chronomat Evolution B1335611/A675?

For a two-tone steel and yellow gold reference such as the Chronomat Evolution, a hornback or mississippiensis alligator leather strap in cognac or havana tones pairs most coherently with the case materials. Vegetable-tanned calf leather and vulcanised rubber are excellent alternatives for everyday or sportive wear. The 20 mm lug width offers broad compatibility with Casati Milano's handcrafted strap range.

How do I change the strap on a Breitling Chronomat Evolution?

Replacing the strap on the Chronomat Evolution requires a fine-tipped springbar tool. Press the 20 mm springbars inward toward the lug channel to release them. The Chronomat's short, downward-curved lugs require care; work on a soft surface to avoid scratching the case. If the watch is fitted with the original integrated bracelet, professional watchmaker assistance is recommended.

Are there aftermarket straps compatible with the Breitling Chronomat Evolution B1335611/A675?

Yes, any standard 20 mm strap is technically compatible with the Chronomat Evolution. Given the watch's 43.7 mm case and characteristically curved lugs, a strap with a tapered or low-profile upper end is advisable to ensure a seamless visual transition between case and strap. Milanostraps.it offers a dedicated selection of 20 mm compatible straps.

How long does a leather strap last on a Breitling Chronomat Evolution?

The lifespan of a leather strap depends primarily on leather quality and wearing habits. A high-grade alligator or shell cordovan strap, properly maintained with appropriate conditioners and protected from prolonged exposure to moisture and perspiration, will typically last 2 to 4 years. Casati Milano provides an 18-month guarantee against manufacturing defects. Vegetable-tanned calf leather, though less moisture-resistant, develops a distinctive patina that enhances its aesthetic character over time.