Carl F. Bucherer · Heritage

Strap for Heritage Bicompax Annual Hometown Edition Berlin

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter41 mm
Reference00.10803.08.92.86
FamilyHeritage
MovementCarl F. Bucherer caliber CFB 1972 Hours, Minutes, Small Seconds | Annual Calendar, Big Date, Month | Chronograph
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 Heritage 00.10803.08.92.86

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Heritage 00.10803.08.92.86, seen from the bench

The Carl F. Bucherer Heritage 00.10803.08.92.86 is a 41mm stainless steel chronograph with bicompax dial layout. It features the CFB 1972 in-house movement, including annual calendar with large date display and month indication. The 18mm lug width complements the case proportions with brushed finish and sapphire caseback. Assembled and regulated in Lucerne, this Swiss timepiece balances modern legibility with heritage chronograph design.

Frequently asked questions

What is the lug width of the Carl F. Bucherer Heritage 00.10803.08.92.86?

The lug width is 18mm. This width is the natural standard for the Heritage's 41mm case, ensuring harmonious proportions between the lugs and the overall case diameter. To verify compatibility, measure the distance between the lug pin axes: it must be exactly 18mm.

What is the best strap for the Carl F. Bucherer Heritage 00.10803.08.92.86?

There is no universal choice, but rather informed decisions based on usage. Alligator represents historical coherence and aesthetic restraint. Vegetable-tanned calf leather develops personal patina over time. Shell cordovan offers brilliance but requires careful maintenance. NATO ensures daily practicality without functional compromise. FKM rubber is suitable for swimming and water activities. Consider the dial: on black dials, dark brown alligator or bordeaux cordovan; on silver dials, tan alligator or cognac.

How do I change the strap on the Carl F. Bucherer Heritage 00.10803.08.92.86?

Strap changing requires a spring bar tool (two-pronged device) or a professional caseback opener. Position the tool beneath the lug, gently apply pressure to the lateral pins to release the spring clip, then extract the pin. Repeat on the opposite side. Take care not to lose the small springs: work on a clean, well-lit surface. If you prefer to avoid risk, consult a skilled watchmaker: the Heritage deserves experienced hands.

Can I use an aftermarket strap on the Carl F. Bucherer Heritage 00.10803.08.92.86?

Yes, provided the lug width is exactly 18mm. Verify that your aftermarket strap has the correct dimensions and build quality: the leather must be tanned to European standards (vegetable), stitching must be straight and regular, and the buckle or deployant functional and durable. An artisanal alligator or vegetable-tanned calf strap with proper hardware ensures superior compatibility and longevity compared to generic industrial production.

How long does a leather strap last on the Carl F. Bucherer Heritage 00.10803.08.92.86?

Longevity depends on tanning type and frequency of wear. A vegetable-tanned alligator strap, worn daily under normal conditions (not intensive wet hiking), lasts 5–8 years before replacement is needed. Vegetable-tanned calf has similar lifespan but shows wear more visibly at the edges. Shell cordovan lasts longer (8–12 years) but requires regular maintenance with specialist oils. NATO canvas lasts 3–5 years under intensive use. FKM rubber has a lifespan of 4–6 years before it begins to lose elasticity.

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