Montblanc · Heritage

Strap for Heritage Chronometrie Automatic 40mm 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 diameter40 mm
Reference112532
FamilyHeritage
MovementMontblanc caliber MB 24.09 hours, minutes, seconds | date
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 112532

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Heritage 112532, seen from the bench

The Montblanc Heritage reference 112532 is equipped with the automatic caliber MB 24.09, with indication of hours, minutes, seconds and date. The movement offers the essential time reading functions with date complication. The lugs measure 20mm in width.

Frequently asked questions

What is the lug width of the Montblanc Heritage 112532?

The lug width of the Montblanc Heritage 112532 is 20 millimetres. This measurement indicates the distance between the lateral lugs of the case and determines the compatibility of any aftermarket strap. A 20mm strap fits perfectly, ensuring correct passant alignment around the lugs and proper buckle positioning.

What is the best strap material for the Montblanc Heritage 112532?

For the Montblanc 112532 we recommend alligator for formal contexts, vegetable-tanned calf leather for elegant daily wear, and NATO for casual-sport styling. The choice depends on usage: exotic leather offers refinement and ageing patina, calf combines durability with naturalness, fabric ensures practicality and skin breathability.

How do you change the strap on the Montblanc Heritage 112532?

Remove the strap using a spring bar tool. Position the tool in the recess on the pin and gently press downward to release the internal spring, then extract the pin. Insert the new strap by aligning the lugs, reinsert the pin until it clicks into place. Verify that the strap is securely attached before wearing the watch.

Is a 20mm aftermarket strap compatible with the Montblanc Heritage 112532?

Yes, any strap with a 20-millimetre lug width is completely compatible with the Montblanc 112532. We recommend bespoke artisanal straps to ensure construction quality and finishes consistent with case standards. Always verify that the strap features a spring-bar deployante for wrist security.

How long does a leather strap last on the Montblanc Heritage 112532?

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 3-5 years of daily wear, depending on exposure to water, perspiration, and climate variations. Regular maintenance—drying after moisture contact, applying vegetable balms every six months—significantly extends longevity. NATO and FKM rubber straps offer superior durability but lesser aesthetic versatility.

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