Breitling · Montbrillant

Strap for Montbrillant 01 Stainless Steel / Aurora Blue / Bracelet / Limited 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 diameter40 mm
ReferenceAB0130C5.C894.448A
FamilyMontbrillant
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 Montbrillant AB0130C5.C894.448A, seen from the bench

The Breitling Montbrillant 01 AB0130C5.C894.448A is a 40mm stainless steel chronograph with a 20mm lug width, featuring the in-house Caliber B01 movement with column-wheel architecture, COSC certification, and 70-hour power reserve. Named after Montbrillant Street in Geneva, this contemporary reinterpretation of the original 1915 chronograph design combines professional aviation capability with refined elegance and balanced geometry for versatile wrist compatibility.

Frequently asked questions

What is the lug width of the Breitling Montbrillant AB0130C5.C894.448A?

The lug width of the Breitling Montbrillant AB0130C5.C894.448A is 20mm. This measurement should be taken with a digital calliper at the internal distance between the two lug horns, not across the outer edges. A strap with straight ends measuring 20mm at the top is the correct fit for this reference.

What is the best strap for the Breitling Montbrillant AB0130C5.C894.448A?

For the Montbrillant with a 40mm brushed stainless steel case, an alligator strap in vegetable-tanned leather with tone-on-tone stitching is the most coherent choice aesthetically. Smooth calf leather suits formal settings, whilst a technical nylon NATO strap references the model's aeronautical heritage. A polished or brushed steel ardillon buckle, or a brushed deployant clasp, completes the pairing without disrupting the case proportions.

How do you change the strap on a Breitling Montbrillant?

The strap on the Breitling Montbrillant is removed by releasing the springbars housed in the 20mm lugs using a dedicated forked springbar tool. Work on a soft surface to protect the case finish, and ensure replacement springbars are of the correct diameter and internal length (typically 22mm). If in doubt, entrust the operation to a watchmaker or specialist atelier.

Are there aftermarket straps compatible with the Breitling Montbrillant AB0130C5.C894.448A?

Yes. Any 20mm strap with straight ends and standard springbars is compatible with the Breitling Montbrillant AB0130C5.C894.448A. The aftermarket offers options in alligator, calf leather, shell cordovan, NATO nylon and vulcanised rubber. Milanostraps.it stocks a curated selection of compatible 20mm straps, with bespoke handcrafted options available through the Casati Milano atelier.

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

The lifespan of a leather strap depends on the quality of the hide, frequency of wear, and exposure to perspiration and environmental conditions. A quality vegetable-tanned alligator strap worn daily under normal conditions typically lasts between 18 and 36 months. Shell cordovan, owing to its dense fibre structure, tends to last longer whilst developing a characteristic patina. To extend strap life, it is advisable to rotate between at least two straps and to apply a suitable leather conditioner periodically.

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