Breitling · Navitimer

Strap for Navitimer B01 Chronograph 43 Stainless Steel / Zürich

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
ReferenceAB01388C1L1A1
FamilyNavitimer
MovementBreitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Navitimer AB01388C1L1A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Navitimer AB01388C1L1A1, seen from the bench

The Navitimer B01 Chronograph 43 is a stainless steel sports chronograph with a 43 mm case and a 22 mm lug width, representing the contemporary synthesis of Breitling's aviation heritage dating back to 1952. Powered by the in-house Breitling B01 chronograph movement certified COSC, it features a bidirectional rotating bezel with logarithmic scale, a function-rich dial with 30-minute and 12-hour counters, and water resistance to 30 metres. The case combines satin and polished finishing, while the straight lugs with slight downward inclination ensure optimal wear on medium to large wrists.

Frequently asked questions

What is the lug width of the Breitling Navitimer AB01388C1L1A1?

The Breitling Navitimer AB01388C1L1A1 features a lug width of 22 mm, the standard measurement used by Breitling across the 43 mm Navitimer range. This should be confirmed using a digital calliper measured at the inner spring bar slot between the two lugs.

What is the best strap for the Breitling Navitimer AB01388C1L1A1?

For the Navitimer AB01388C1L1A1, a vegetable-tanned alligator strap with a defined centre grain offers the strongest formal coherence with the case quality. Box-calf leather in havana or tobacco tones provides a more everyday alternative, while a nylon NATO strap reinforces the aviation aesthetic. Vulcanised rubber is recommended for intensive sporting use.

How do you change the strap on the Breitling Navitimer AB01388C1L1A1?

The strap on the Navitimer AB01388C1L1A1 is secured by standard 22 mm spring bars. To replace it, use a spring bar tool or fork-tip screwdriver to compress the pin, slide the strap free from the lug, and fit the new one. The operation does not require a watchmaker, though working on a soft surface is advisable to prevent case scratches.

Are there aftermarket straps compatible with the Breitling Navitimer AB01388C1L1A1?

Yes. Any strap with a 22 mm attachment width and standard spring bars is compatible with the Navitimer AB01388C1L1A1. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, shell cordovan and rubber, available both as bespoke commissions and ready-to-ship online, all with a 22 mm lug width.

How long does a leather strap last on a Breitling Navitimer AB01388C1L1A1?

The longevity of a leather strap depends on hide quality, frequency of wear and exposure to perspiration and moisture. A hand-finished alligator or vegetable-tanned calf strap of artisan quality can last between two and five years with regular use. Avoiding prolonged water contact and occasionally applying a leather conditioner will significantly extend its service life.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only