Bell & Ross · BR-03

Strap for BR 03 Rafale

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

Lug width20 mm
Case diameter42 mm
ReferenceBR03-Rafale
FamilyBR-03
MovementBell & Ross caliber BR-CAL.301 hours, minutes, small seconds | date | Chronograph
Year2015
CaseCeramic, Stainless 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 BR-03 BR03-Rafale

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The BR-03 BR03-Rafale, seen from the bench

The Bell & Ross BR-03 Rafale is a square-cased instrument watch developed in collaboration with French aerospace engineers, featuring a Bell & Ross caliber BR-CAL.301 movement with hours, minutes, small seconds, and date. The case combines ceramic and stainless steel in 42mm diameter, while the 20mm lug width is engineered for proportional balance and compatibility with pressurized flight suits and tactical gloves.

Frequently asked questions

What is the exact lug width of the Bell & Ross BR-03 BR03-Rafale?

The Bell & Ross BR-03 Rafale features a fixed lug width of 20mm. This dimension is non-negotiable, as it is determined by the proportions of the 42mm case diameter and the proprietary integrated lugs designed by the manufacturer. Always verify the internal distance between the lugs before ordering a replacement strap.

What is the best strap for the BR-03 Rafale?

The choice depends on intended use. For daily elegance, we recommend grey-tortoiseshell alligator or vegetable-tanned brown calf leather. For authenticity to the original aeronautical purpose, navy NATO or black fluoroelastomeric rubber maintains the tactical identity of the chronograph. Shell cordovan, though rare, surprises with its durability and patina development over time.

How do I change the strap on a Bell & Ross BR-03?

The BR-03 utilises proprietary integrated lugs, so changing the strap requires precision. Use a dedicated spring bar tool to insert the fixing pins into the vertical recesses of the lugs. The procedure is identical to any watch with standard attachments, but the square geometry of the case necessitates initial practice. If inexperienced, consult a professional watchmaker.

Can I use a non-original aftermarket strap on the BR-03 Rafale?

Absolutely. Any strap with a 20mm lug width is compatible with the BR-03 Rafale, regardless of manufacturer. Milano Straps offers artisanal straps in alligator, calf, NATO, and rubber, all sized to 20mm and tested for perfect fit to the case rails. Compatibility is guaranteed by the standardisation of the lug width.

How long does a leather strap last on the Bell & Ross BR-03?

Durability varies depending on material and usage. A vegetable-tanned calf strap resists 3-5 years of daily wear before aesthetic replacement becomes desirable (not mechanical necessity). Alligator, being more durable, extends lifespan to 5-7 years. Shell cordovan can exceed a decade of use. Strap replacement frequency is an aesthetic and maintenance choice, not a technical requirement. Milano Straps guarantees 18 months on all artisanal straps.

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