Technical Archive

Bell & Ross
BR-03 BR0394BLCA— lug 20mm

Bell & Ross BR-03 BR0394BLCA: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

BR 03 94 Carbon Chronograph

Artisanal Note

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

Technical Specifications

Bell & Ross BR0394BLCA
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

BR0394BLCA

Movement

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

The Heritage

The Bell & Ross BR-03 features the BR-CAL.301 caliber with hour, minute, small second, date and chronograph functions. The watch adopts the brand's distinctive square case, inspired by aviation instrumentation. The BR0394BLCA reference maintains the distinctive proportions of the BR-03 collection.

FAQ

What is the lug width of the Bell & Ross BR-03 BR0394BLCA?

The lug width of the Bell & Ross BR-03 BR0394BLCA is exactly 20 millimetres, measured from the outer edge of one lug pin to the outer edge of the opposite pin. To verify this measurement, use a digital calliper positioned between the two metal lugs protruding from the case: the reading should be precisely 20mm. This dimension is specifically engineered to maintain optimal proportions with the 42-millimetre square case.

Which strap is best suited for the Bell & Ross BR0394BLCA?

The ideal strap for the BR0394BLCA depends on your intended use and personal preferences. A satin-finished black alligator strap maintains the instrumental identity of the watch; vegetable-tanned black calf leather offers suppleness and develops natural patina over time. For technical or warm-weather contexts, a structured grey or anthracite rubber strap performs excellently. A grey-black NATO fabric evokes the military equipment from which the BR-03 draws inspiration. Your selection should always amplify the functional character of the case, never contradict it.

How do I change the strap on my Bell & Ross BR-03 BR0394BLCA?

Position your watch with the lug pins facing upwards. Using a spring bar tool—a specialised lever instrument—gently compress the internal spring of each pin and extract it from one side of the case. Once freed, the old strap separates completely. Insert the pins of your new strap into the case attachments, pressing firmly until the internal spring closes securely. Verify that the strap is properly aligned and sits flush before wearing the watch.

Are aftermarket straps compatible with the Bell & Ross BR0394BLCA?

Yes, any strap or bracelet with a 20-millimetre lug width is compatible with the BR0394BLCA. However, the quality of the strap should reflect the value of the watch itself: premium leather (alligator, shell cordovan, high-grade calf), precision finishing, and reliable deployment clasp mechanisms are essential. At milanostraps.it, you will find a curated selection of artisanal 20mm straps, customisable according to your requirements and ready for immediate shipping.

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

A quality leather strap on your BR0394BLCA should last between 3 and 5 years with daily wear, provided you perform regular maintenance. Factors such as water exposure, perspiration, humidity, and wearing frequency directly influence longevity. Vegetable-tanned leather, whilst developing natural patina, demonstrates greater resistance to breakage than industrially-produced alternatives. Periodic cleaning with a damp cloth and thorough drying after water exposure will significantly extend your strap's lifespan. Casati Milano provides an 18-month warranty on all bespoke straps.