Montblanc · Star

Strap for Star Traditional Chronograph UTC Automatic Silver

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

Lug width22 mm
Case diameter42 mm
Reference110590
FamilyStar
MovementMontblanc caliber MB 25.03 Additional 24 Hour Hand (adjustable), Hours, Minutes, Small Seconds | Date | Chronograph
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 110590

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Star 110590, seen from the bench

The Montblanc Star 110590 is a 42mm stainless steel automatic chronograph featuring the Montblanc caliber MB 25.03 manual-wind movement with 24-hour UTC function, hours, minutes, small seconds, and date. The case is crafted in 904L steel with a 22mm lug width, maintaining balanced proportions between dress and sport aesthetics without visual ostentation.

Frequently asked questions

What is the exact lug width of the Montblanc Star 110590?

The Montblanc Star 110590 features a lug width of 22mm. This measurement is consistent across all examples of the model and should be verified by measuring the distance between the lug horns at their attachment points on the case. Respecting this dimension is essential when selecting a replacement strap to ensure both mechanical and aesthetic compatibility.

Which strap do you recommend for the Montblanc Star 110590?

For a timepiece of this calibre, artisanal leather in vegetable tanning represents the primary choice. An alligator in Testa di Moro or aniline-dyed calf in dark brown tones pairs naturally with the balanced design of the 110590. For daily versatility, a NATO in cotton or linen preserves appropriate proportions through its contained thickness. Rubber is advisable only for those intending to wear the watch in explicitly casual or aquatic contexts.

How do you change the strap on a Montblanc Star 110590?

Strap replacement requires the use of a dedicated spring bar removal tool. Position the strap with the spring bar facing downward and use the tool to push the bar laterally, creating sufficient space for extraction. Once the spring bar is removed from the lug horn, the strap detaches. For installation of the new strap, align the strap holes with the case lugs and reinsert the spring bar until it seats completely. Avoid forceful movements that could damage the lug holes.

Is the Montblanc Star 110590 compatible with quality aftermarket straps?

Yes, since the 22mm lug width is a widespread standard in horology, the aftermarket offers fine artisanal straps in compatible dimensions. Straps crafted from Italian vegetable-tanned leather with 22mm lugs and appropriate thickness (typically 3.5–4mm) guarantee mechanical compatibility and aesthetic elevation over original equipment. Always verify technical specifications before purchase.

How long does a leather strap last on a Montblanc Star 110590?

A quality leather strap subjected to normal daily wear has an average lifespan of 3–5 years. Longevity varies according to tanning method: vegetable-tanned leather tends to patina and retain structure longer than chromium-tanned varieties. Constant exposure to moisture, heat and perspiration accelerates deterioration. With proper maintenance—periodic cleaning with a damp cloth and air drying—it is possible to extend the strap's life. Replacement remains an economical and straightforward operation.

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