Montblanc · Heritage

Strap for Heritage Spirit Date Automatic 39mm Two Tone

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

Lug width18 mm
Case diameter39 mm
Reference111624
FamilyHeritage
MovementMontblanc caliber MB 24.17 hours, minutes, seconds | date
CaseRed Gold, Stainless 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 111624

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Heritage 111624, seen from the bench

The Montblanc Heritage reference 111624 features the automatic caliber MB 24.17 with hour, minute, second and date indication. The watch has 18mm lugs for the strap. The movement offers the essential functions for daily use with the precision of Montblanc calibers.

Frequently asked questions

What is the lug width of the Montblanc Heritage 111624?

The lug width of the Montblanc Heritage 111624 is 18 millimetres. This is the standard distance between the spring bar attachment points on the case, allowing compatibility with any strap manufactured to this specification.

What is the best strap for the Montblanc Heritage 111624?

The best strap depends on your lifestyle. For formal occasions, we recommend dark brown alligator or vegetable-tanned calf in cognac tones; for versatile daily wear, grey-taupe calf that develops visible patina; for contemporary interpretations, navy or slate NATO. The rose gold case pairs naturally with warm and neutral tones.

How do I change the strap on the Montblanc Heritage 111624?

The process is straightforward: use a spring bar tool to gently lift the spring bars on both sides of the case. Once released, the strap detaches easily. Insert the new strap, aligning it with the holes, and press the spring bars until you hear a click. Verify that it is secure before wearing the watch.

Can I use an aftermarket strap on this model?

Yes, any strap with an 18mm lug width is compatible with the 111624. Montblanc uses the universal standard, so there are no construction restrictions. We recommend quality leather straps (alligator, calf, cordovan) or technical fabrics such as premium NATO to preserve the aesthetic and structural integrity of the watch.

How long does a leather strap last on the Montblanc Heritage 111624?

A quality leather strap lasts an average of 3-5 years with daily use, provided regular maintenance. Vegetable tanning evolves visibly but remains functional; chrome tanning is more moisture-resistant. Alligator, being denser, extends durability to 5-7 years. Wear is natural and desirable: it adds patina and tells the story of your watch.

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