Montblanc · Heritage

Strap for Heritage Chronometrie ExoTourbillon Minute Chronograph

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference112542
FamilyHeritage
MovementMontblanc caliber MB R230 day / Night Indication, minutes, jumping hours | date | Chronograph, column wheel, monopusher | tourbillon escapement
CaseRed Gold

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 112542

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Heritage 112542, seen from the bench

The Heritage reference 112542 features the Montblanc MB R230 caliber with tourbillon complications, a single-button chronograph with column-wheel and a day/night indication with jumping hours. The movement integrates date and minute functions with a tourbillon escapement visible. The case has 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Montblanc Heritage 112542?

The Montblanc Heritage 112542 features a lug width of 22 mm. This is the factory standard designed for the 44 mm case, ensuring perfect aesthetic and functional proportion. To verify strap compatibility, measure the internal width of the lug with a digital calliper: the reading must match precisely 22 mm.

What is the best strap for the Montblanc Heritage 112542 in Red Gold?

Vegetable-tanned Tuscan leather represents the ideal pairing: the natural warmth of Florentine leather dialogues perfectly with Red Gold, creating chromatic harmony throughout the seasons. Alternatively, alligator offers formal elegance and exceptional durability, whilst structured rubber is recommended for sports usage. All compatible 22 mm straps are available at Milano Straps.

How do I change the strap on my Montblanc Heritage 112542?

The procedure requires specialised tools: a strap remover and magnifying glass. Position the watch horizontally, locate the lug bar pin traversing the anse, insert the remover perpendicularly and apply steady pressure to extract the pin. Repeat on the opposite lug. Mounting a new strap requires reversing the procedure: the pin must click into position with precision. If inexperienced, entrust this to a professional watchmaker to avoid case damage.

Can I use an aftermarket strap on my Montblanc Heritage 112542?

Absolutely. A 22 mm strap constructed to adequate quality standards is mechanically and structurally compatible. Milano Straps offers a specialised collection of 22 mm straps in Tuscan leather, alligator, rubber and NATO, all tested for compatibility and build quality. Ensure the lug width corresponds precisely and that internal lug bar holes accommodate the pin correctly.

What is the lifespan of a leather strap on a Montblanc Heritage 112542?

A vegetable-tanned Tuscan leather strap, worn daily, maintains structural integrity for 3–5 years while developing increasingly beautiful patina. Longevity depends on local climate, wearing frequency and maintenance: prolonged humidity exposure reduces durability, whilst dry storage extends it. Should the strap exhibit structural cracking or visible thinning near the lugs, replacement is advisable for safety reasons.

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