Strap for Classique Date Quartz 39mm

The lug width of the Montblanc Star 108770 is 19 millimetres. This measurement represents the distance between the two attachment points on the watch case where the strap is fitted. Accurate measurement is essential to ensure a perfect fit and prevent unwanted lateral play.

The most appropriate straps for the Montblanc Star 108770 are those crafted in alligator with vegetable tanning, noble calf leather, or cotton NATO. Dark alligator develops a natural patina over time that harmonises elegantly with the case's brushed finishing. Calf leather offers a refined grain, whilst NATO allows for a more casual aesthetic whilst maintaining overall coherence.

The strap is replaced by removing the metal lugs that connect the strap to the case bars. Using a spring bar tool or a small flat screwdriver, insert the tool into the small hole on each lug to gently lift them free. After extracting the lugs, remove the old strap and proceed with installing the new one, ensuring the lugs seat properly in the case recesses.

Yes, absolutely. The 19-millimetre lug width is a widely used standard, so quality artisanal aftermarket straps manufactured to this precise specification are fully compatible. Always verify that the new strap has been correctly sized to avoid installation issues.

A leather strap crafted from noble hides with vegetable tanning, when used under normal conditions (without constant exposure to moisture, water, or repeated mechanical stress), maintains its structural integrity between 3 and 5 years. Natural wear manifests as surface patina and leather softening, which are marks of authenticity. Periodic maintenance with natural waxes or specialist oils will extend the strap's lifespan to 7-8 years.