Bell & Ross · BR-03

Strap for BR 03 92 Horograph

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
ReferenceBR0392-HOR-BLC/SRB
FamilyBR-03
MovementBell & Ross caliber BR-CAL.302 hours, minutes, seconds | date
Year2017
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 BR-03 BR0392-HOR-BLC/SRB

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The BR-03 BR0392-HOR-BLC/SRB, seen from the bench

The BR-03 represents the main line of Bell & Ross, characterized by the square case inspired by aeronautical instruments. It is equipped with the BR-CAL.302 caliber with hours, minutes, seconds and date functions. The reference BR0392-HOR-BLC/SRB features a two-tone configuration with black and red elements.

Frequently asked questions

What is the lug width of the Bell & Ross BR-03 BR0392-HOR-BLC/SRB?

The lug width of the Bell & Ross BR-03 BR0392-HOR-BLC/SRB is 20mm. This is the distance between the upper and lower attachment points on the case, and it is the standard width for the entire BR-03 family. Any aftermarket strap must respect this measurement to ensure correct installation and balanced optical proportions.

What is the best strap for the Bell & Ross BR-03 BR0392-HOR-BLC/SRB?

The best strap depends on its intended use: for formal or business contexts, an alligator strap with vegetable tanning in brown or chestnut tones dialogues perfectly with the case geometry. For evening elegance, black or dark grey calf leather. For daily dynamics and outdoor use, calf leather with naturally developed patina over time, or a NATO if military authenticity is desired. The strap must be 20mm and mounted with stainless steel lugs for material coherence.

How do you change the strap on the Bell & Ross BR-03 BR0392-HOR-BLC/SRB?

The BR-03 strap is secured via bayonet lugs or screws, depending on the version. Using a dedicated spring bar tool (available from specialist watchmakers or accessory suppliers), compress the retention mechanism and extract the lug from the case. Remove the old strap and mount the new one in the same opening. It is a simple operation but requires dedicated tools: it is recommended to entrust it to an experienced watchmaker if you are unfamiliar with the procedure.

Are there quality aftermarket straps compatible with the BR0392-HOR-BLC/SRB?

Yes, Milano Straps offers a curated selection of high-quality artisanal straps in 20mm size, compatible with the BR-03. Straps are available in alligator leather, Italian calf, vegetable tanning, and premium finishes. You can personalise them in sizes, initials and stitching thread, or order pre-made models with fast shipping. All straps are tested to ensure perfect mounting on the BR-03's square case.

How long does a leather strap last on the Bell & Ross BR-03 BR0392-HOR-BLC/SRB?

The durability of a leather strap depends on the quality of the tanning, daily use and maintenance. A strap in Italian calf with vegetable tanning lasts an average of 3-5 years in daily use, developing a rich patina over time. Alligator leather with vegetable tanning, being a more robust leather, can last 5-7 years or more. Milano Straps offers an 18-month warranty on all custom straps made by Casati Milano, and provides advice on periodic maintenance (hydration, cleaning) to extend product longevity.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only