Breitling · Chronomat B01 41

Strap for Chronomat 41

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

Lug width20 mm
Case diameter41 mm
ReferenceAB0140AAF554728P
FamilyChronomat B01 41
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

The Chronomat B01 41 AB0140AAF554728P, seen from the bench

The Chronomat B01 41 is powered by the in-house B01 caliber with a column-wheel chronograph function and chronometer certification. The automatic movement offers indication of hours, minutes, small seconds, date, and chronograph. The 41mm case features integrated lugs in line with the distinctive design of the Chronomat collection.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 41 AB0140AAF554728P?

The lug width of the Breitling Chronomat B01 41 AB0140AAF554728P is 20 mm. This is measured between the two lower lugs of the case at the strap attachment point. The version featuring the integrated Rouleaux bracelet has a slightly non-standard lug profile, so compatibility should be verified before fitting an aftermarket strap.

What is the best strap for the Breitling Chronomat B01 41?

For the Breitling Chronomat B01 41, the most suitable materials are bombée alligator for formal occasions, vegetable-tanned calf leather for daily wear, and vulcanised rubber for sports use. Ballistic nylon NATO straps are consistent with the model's aeronautical heritage. The colour choice depends on the dial: midnight blue or black for steel cases with dark dials, cognac or tobacco brown for white or silver dials.

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

To change the strap on a Breitling Chronomat B01 41, the spring bars must be removed from the lugs using a fine-tipped spring bar tool or a small flat-head screwdriver. With the integrated Rouleaux bracelet, care must be taken to avoid scratching the case: it is advisable to protect the lugs with masking tape before proceeding. Standard 20 mm spring bars are compatible with most aftermarket straps.

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

Yes, there are aftermarket straps compatible with the Breitling Chronomat B01 41 with a 20 mm lug width. Milano Straps offers a selection of handcrafted leather, rubber and nylon straps specifically suited to this size. For the integrated bracelet version, it is important to check the lug depth and spring bar length. In some cases, an adapter or specific-length spring bars may be required.

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

The lifespan of a leather strap for the Breitling Chronomat B01 41 depends on the material and usage. A vegetable-tanned calf leather strap, with regular conditioning and protection from moisture, typically lasts 2–4 years. Quality alligator, owing to the compact structure of its scales, can exceed 5 years if kept away from excessive perspiration. Milano Straps products are covered by an 18-month warranty against manufacturing defects.

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