Breitling · Montbrillant

Strap for Montbillant 38 Stainless Steel / Black / Japan Special Edition

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
ReferenceA4137012/BE22/223A
FamilyMontbrillant
MovementBreitling caliber 41 hours, minutes, small seconds | date | Chronograph | chronometer
Year2019
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 Montbrillant A4137012/BE22/223A

Selected for the 20 mm lug width

All 20 mm straps →

The Montbrillant A4137012/BE22/223A, seen from the bench

The Breitling Montbrillant 38 Stainless Steel is a 38mm chronograph with reference A4137012/BE22/223A. It features the Breitling Caliber 41 movement, COSC chronometer certified, with hours, minutes, small seconds, date display and chronograph function. The case is stainless steel with a rotating bezel and tachymetric scale. The lug width is 20mm, designed with curved terminals for proper strap integration.

Frequently asked questions

What is the lug width of the Breitling Montbrillant A4137012/BE22/223A?

The lug width of the Breitling Montbrillant A4137012/BE22/223A is 20mm. This measurement refers to the internal distance between the two lug ends of the case and determines the correct strap width to fit the watch. It is advisable to verify the measurement with a digital calliper before purchasing a replacement strap.

What is the best strap for the Breitling Montbrillant A4137012/BE22/223A?

For the Montbrillant A4137012/BE22/223A, an alligator strap with symmetrical Louisiana grain is the most coherent choice given the model's elegant character. Alternatively, a vegetable-tanned calfskin strap develops an authentic patina over time, while shell cordovan offers natural lustre and compactness with minimal maintenance. For sport or mixed use, a vulcanised rubber or ballistic nylon NATO strap provides a functional and proportionate solution.

How do you change the strap on the Breitling Montbrillant A4137012/BE22/223A?

The strap on the Breitling Montbrillant A4137012/BE22/223A is secured by spring bars fitted between the lugs. Use a dedicated spring bar tool to compress the ends of the spring bar and slide the strap free from the lug. The operation does not require opening the case or specialist watchmaking skills, but should be performed carefully to avoid scratching the metal surfaces.

Are there aftermarket straps compatible with the Breitling Montbrillant A4137012/BE22/223A?

Yes, any strap with a lug width of 20mm is technically compatible with the Breitling Montbrillant A4137012/BE22/223A. milanostraps.it offers a selection of handcrafted straps in various materials and finishes, all produced with standard 20mm spring bars. For the best result, straps with curved or shaped ends are preferable, as they conform more naturally to the lug geometry of this particular model.

How long does a leather strap last on a Breitling Montbrillant A4137012/BE22/223A?

The lifespan of a leather strap depends on the material, frequency of use and level of care. A vegetable-tanned calfskin strap, properly maintained, typically lasts 2 to 3 years with daily wear. Shell cordovan and alligator, due to the higher fibre density of these materials, can reach 4 to 6 years. Prolonged exposure to perspiration, water and direct sunlight accelerates deterioration; rotating between multiple straps and applying a quality leather conditioner periodically will extend service life significantly.

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