Breitling · Montbrillant

Strap for Montbrillant Datora

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
ReferenceA2133012B993435X
FamilyMontbrillant
MovementBreitling caliber Caliber 21 Hours, Minutes, Small Seconds, Day / Night Indication | Date, Day, Month | Chronograph
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 A2133012B993435X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Montbrillant A2133012B993435X, seen from the bench

The Montbrillant is a Breitling multi-function chronograph powered by the Caliber 21, with hour, minute, small seconds, and day/night indicator. The movement offers full calendar functions with day, month, and chronograph. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Breitling Montbrillant A2133012B993435X?

The lug width of the Breitling Montbrillant A2133012B993435X is 22mm. This measurement refers to the internal distance between the two lugs and determines the correct strap width. It is advisable to verify this with a digital calliper before purchasing a replacement strap.

What is the best strap for the Breitling Montbrillant A2133012B993435X?

Given its aeronautical heritage and instrument-oriented dial, the Montbrillant pairs best with a matte or semi-gloss alligator strap, or a vegetable-tanned calf leather strap that develops a patina consistent with the model's vintage character. A ballistic nylon NATO strap is the ideal alternative for daily sporting use.

How do I change the strap on a Breitling Montbrillant?

The strap on the Breitling Montbrillant is replaced using a spring bar tool to release the existing spring bars. Care should be taken to avoid scratching the steel lugs; using a watch cushion is recommended. If in doubt, the procedure should be entrusted to a watchmaker or a specialist strap service.

Are there aftermarket straps compatible with the Breitling Montbrillant A2133012B993435X?

Yes, any strap with a 22mm attachment width is technically compatible with the Breitling Montbrillant A2133012B993435X. milanostraps.it offers a curated selection of handcrafted straps in various materials and finishes, all listed in the dedicated 22mm lug width section, with no adapters required.

How long does a leather strap last on a Breitling Montbrillant?

The lifespan of a leather strap depends on the material, tanning method and frequency of use. A quality handcrafted alligator or vegetable-tanned calf strap, properly maintained — avoiding prolonged contact with water and applying a leather conditioner occasionally — can last between 2 and 5 years while retaining its appearance and structural integrity.

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