Montblanc · Star

Strap for Star Roman Small Second Automatic Stainless Steel / Silver / Bracelet

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter39 mm
Reference111912
FamilyStar
MovementMontblanc caliber MB 24.16 hours, minutes, small 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 Star 111912

Selected for the 19 mm lug width · workshop selection

All 19 mm straps →

The Star 111912, seen from the bench

The Montblanc Star reference 111912 features the automatic caliber MB 24.16 with indication of hours, minutes, small seconds and date. The model has 19mm lugs and is part of the Star collection of the German brand. The movement offers the essential functions for daily use with the typical Montblanc manufacturing quality.

Frequently asked questions

What is the lug width of the Montblanc Star 111912?

The lug width of the 111912 is 19mm. This measurement, taken between the two lugs on the case, is essential for selecting a compatible strap. Always verify the value with a digital calliper before purchase.

Which strap is best suited for the Montblanc Star 111912?

An alligator strap in cognac brown or a vegetable-tanned calf leather strap represents the most elegant choices. For robust daily use, heavy cotton NATO straps offer versatility. FKM rubber is ideal for humid environments or summer wear.

How do I change the strap on a Montblanc Star 111912?

You will need a springbar removal tool. Position the small hook under the elastic pin, gently push to release the internal spring, then slide the pin out. Repeat on the other side. If you prefer to avoid doing it yourself, consult a specialist watchmaker or visit Atelier Casati Milano by appointment.

Is an aftermarket 19mm strap truly compatible with the 111912?

Yes, any strap with a 19mm lug width is mechanically compatible. Aesthetic compatibility, however, depends on thickness and finish: a poorly made strap will highlight case defects. We recommend artisanal leather or rubber straps to maintain the watch's integrity.

How long does a leather strap last on a watch like the Montblanc Star 111912?

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts an average of 3-5 years with daily wear, up to 7-10 years if worn occasionally. Longevity depends on sun exposure, perspiration and maintenance. A heavy cotton NATO strap can last 5-8 years. FKM rubber has a similar lifespan to leather but is more resistant to atmospheric agents.

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