Technical Archive

Bell & Ross
BR-03 BR0394OCA— lug 20mm

Bell & Ross BR-03 BR0394OCA: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

BR 03 94 Carbon Orange Chronograph

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Bell & Ross BR0394OCA
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

BR0394OCA

Movement

Bell & Ross caliber BR-CAL.301 Hours, Minutes, Small Seconds | Date | Chronograph

The Heritage

The Bell & Ross BR-03 features a design inspired by aircraft instrumentation with a square case. It is powered by the BR-CAL.301 caliber with functions of hours, minutes, small seconds, date, and chronograph. The BR0394OCA reference maintains the characteristic proportions of the BR-03 collection.

FAQ

What is the lug width of the Bell & Ross BR-03 BR0394OCA?

The Bell & Ross BR-03 BR0394OCA features a lug width of 20 millimetres. This is the distance between the two integrated lugs of the square case. All 20-millimetre straps from our collection are compatible with this model.

What is the best strap for the Bell & Ross BR-03 BR0394OCA?

The best strap depends on your intended use. For formal contexts, we recommend alligator in black or dark brown; for developing patina over time, vegetable-tanned calf; for its aeronautical heritage, technical anti-slip rubber. Each material enhances different aspects of the BR0394OCA design.

How do I change the strap on my BR0394OCA?

To change the strap, remove the spring bars from the case lugs using a dedicated tool. Insert the new strap into the same lugs, ensuring the keeper loop is centred and the buckle closes firmly. If you prefer, our Casati Milano atelier provides strap mounting services.

Can I use an aftermarket strap compatible with the BR-03 BR0394OCA?

Yes, any strap with a 20-millimetre lug width is compatible with the BR0394OCA, regardless of manufacturer. We recommend verifying leather quality and stitching durability to prevent premature wear or damage to the watch.

How long does a leather strap last on my BR0394OCA?

A leather strap's lifespan depends on usage intensity, climate, and maintenance. Generally, a quality alligator or calf strap lasts between 3 to 5 years with daily wear. Vegetable-tanned leather develops patina over time, extending its aesthetic appeal; rubber lasts 5-7 years. Our straps include an 18-month warranty.