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Bell & Ross · Instruments

Strap for BR-X1 Tourbillon Chronograph Titanium Diamonds

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

24mm
24 mm strapsAll Bell & Ross
Lug width24 mm
Case diameter45 mm
ReferenceBRX1-CHTB-TI-D
FamilyInstruments
MovementBell & Ross caliber BR-CAL.283 hours, minutes | Chronograph, column wheel, monopusher | tourbillon escapement
Year2015
CaseTitanium

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the Instruments BRX1-CHTB-TI-D

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Instruments BRX1-CHTB-TI-D, seen from the bench

The Bell & Ross Instruments BRX1-CHTB-TI-D features the BR-CAL.283 caliber with hour, minute, monopusher chronograph and tourbillon escapement functions. The watch is equipped with 24mm lugs and integrates a chronograph system with a column-wheel mechanism for greater precision in time measurements. The movement combines the tourbillon complication with the chronograph functionality in a single mechanical solution.

Frequently asked questions

What is the lug width of the Bell & Ross Instruments BRX1-CHTB-TI-D?

The lug width measures 24mm. This dimension is specific to the model and represents the standard utilised by Bell & Ross for its larger-format chronographs, ensuring case stability and uniform bezel contact.

What is the best strap for the Bell & Ross BRX1-CHTB-TI-D?

Nile alligator in dark colourways (natural black or chocolate brown) represents the most coherent choice with the model's technical philosophy. Alternatively, vegetable-tanned calf offers natural patina development over time. For tactical deployment, ballistic nylon NATO is supreme from a functional standpoint.

How do I change the strap on the Bell & Ross BRX1-CHTB-TI-D?

Lug pins require removal using a dedicated tool or through an authorised service centre. The 24mm lug width necessitates a compatible strap of identical dimensions. Mounting straps in alternative sizes will compromise case stability.

Are there aftermarket straps compatible with this model?

Yes, 24mm artisanal straps are available from Milano Straps, customisable in leather type, colour, and thread. The Casati Milano atelier offers bespoke personalisation service with direct material selection and extended 18-month warranty.

How long does a leather strap last on a watch like the BRX1-CHTB-TI-D?

With regular use, a quality artisanal alligator strap resists 2 to 4 years. Vegetable tanning develops natural patina accelerated by constant wrist contact. Periodic maintenance (cleaning and conditioning) significantly extends durability.

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