Carl F. Bucherer · Heritage

Strap for Heritage Worldtimer Stainless Steel / Silver / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference00.10805.08.13.21
FamilyHeritage
MovementCarl F. Bucherer caliber CFB A2020 Hours, Minutes, World Time | Chronometer
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 00.10805.08.13.21

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Heritage 00.10805.08.13.21, seen from the bench

The Carl F. Bucherer Heritage is equipped with the automatic caliber CFB A2020 with world time function and chronometer certification. The movement indicates hours, minutes and multiple time zones for reading world time. The reference 00.10805.08.13.21 represents a technical offering dedicated to frequent travelers.

Frequently asked questions

What is the lug width of the Carl F. Bucherer Heritage 00.10805.08.13.21?

The lug width measures 20mm. This dimension refers to the integrated case attachment and is the only compatible width for this model. Measurement is taken internally between the pin housings at the midpoint of the lug attachment.

What is the best strap for the Heritage 00.10805.08.13.21?

Selection depends on purpose. For formal elegance: vegetable-tanned calf leather in cognac or dark brown, or African alligator in natural shades. For daily sport use: grey NATO or natural vulcanised rubber in black. The 39mm case and silvered dial accommodate both refined materials and casual options equally well.

How do I change the strap on this timepiece?

The Heritage 00.10805.08.13.21 features integrated lugs. You will require a very small Phillips screwdriver (0.8mm) and an open-ended tool to unscrew the pin from beneath the lug. Professional tools are advised to prevent scratching. Alternatively, entrust the operation to a qualified watchmaker.

Can I fit an aftermarket 20mm compatible strap on this model?

Yes, any strap with a 20mm lug width is mechanically compatible. The integrated attachment does not allow width variations. Milano Straps provides artisanal bespoke straps with specific engineering for Bucherer Heritage models, ensuring perfect fit and ergonomic comfort.

How long does a leather strap last on a daily-worn watch?

A quality vegetable-tanned calf strap lasts 3–5 years under intensive daily use. Lifespan depends on environment (humidity, perspiration), maintenance (periodic cleaning, drying), and torque during wear. Alligator and thicker leathers retain structural integrity longer, 5–7 years. The patina that develops is a virtue, not a defect.

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