Breitling · Chronomat 38

Strap for Chronomat 38 SleekT Stainless Steel / Diamond / MOP / Calf

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter38 mm
ReferenceA1331053A774115X
FamilyChronomat 38
MovementBreitling caliber Caliber 13 Hours, Minutes, Small Seconds | Date | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Chronomat 38 A1331053A774115X, seen from the bench

The Chronomat 38 represents the smaller size version of the Breitling Chronomat collection. It is powered by the Caliber 13 with functions of hours, minutes, small seconds, date, and chronograph. The 38mm case features 20mm lug width.

Frequently asked questions

What is the lug width of the Breitling Chronomat 38 A1331053A774115X?

The Breitling Chronomat 38 A1331053A774115X has a lug width of 20 mm. This measurement is taken between the two lugs using a digital calliper and determines the correct strap width for a proper fit.

What is the best strap for the Breitling Chronomat 38?

The choice depends on context: for a dressier register, alligator leather or shell cordovan in navy or tobacco tones enhance the Chronomat's dual sporting-formal character. For daily or outdoor use, a moulded rubber or woven nylon NATO strap maintains consistency with the watch's instrument heritage.

How do I change the strap on a Breitling Chronomat 38?

The strap is removed using a springbar tool inserted into the lateral lug holes to compress the spring bars. The operation takes approximately two minutes and requires no professional assistance if the correct tool is used. It is advisable to work on a soft surface to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Chronomat 38 A1331053A774115X?

Yes. Any strap with a 20 mm lug width is technically compatible. The aftermarket offer includes high-grade vegetable-tanned leathers, alligator, shell cordovan, as well as rubber and NATO options. It is important to verify that the taper (typically 20/18 mm) and length are appropriate for your wrist size.

How long does a leather strap last on a Breitling Chronomat 38?

Longevity depends on the material and frequency of use. A vegetable-tanned calfskin strap under regular wear typically lasts 18 to 36 months. Shell cordovan, being denser and more compact, can last considerably longer while developing a distinctive patina. Prolonged exposure to water and perspiration accelerates deterioration; rubber or nylon is preferable for intensive sporting use.

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