Strap for Classique Date Automatic 39mm

The Montblanc Star 110717 features a lug width of 19 millimetres. This is the precise distance between the two lugs where the strap attaches. It is essential to verify this measurement with a digital calliper or ruler before ordering a compatible strap, as any discrepancy would render the strap unusable.

The choice depends on use and aesthetic preference. For formal contexts, a strap in alligator or shell cordovan ensures maximum elegance and develops a patina that evolves over time. For daily wear and versatility, vegetable-tanned calf leather offers comfort and sustainability. If the watch must withstand humid or sporty environments, rubber is the most practical and resistant choice.

Strap replacement on the 110717 is accomplished via the spring bars that connect the lugs to the case. Using a dedicated tool or a small flat screwdriver, compress the spring bar to widen the hole in the lug. Remove the previous strap and insert the new one, ensuring the spring bar is fully locked. It is advisable to perform the operation on a clean, soft surface to avoid scratches on the case.

Yes, any quality strap with a 19mm lug width is compatible with the 110717, provided the spring bars are of identical size. Artisanal aftermarket straps often offer superior construction quality to original models, with customisable materials and finishes. Always ensure the supplier explicitly specifies compatibility with the 19mm measurement.

Durability depends on the material, frequency of use and maintenance. A high-quality alligator or shell cordovan strap typically lasts 3-5 years with regular use, developing a fascinating patina. Vegetable-tanned calf leather has similar longevity. Rubber resists 5-7 years before showing signs of wear. The natural ageing of leather, with creases and colour variations, is a desirable characteristic, not a defect.