Strap for Star Classique Automatic Yellow Gold / Black

The lug width of the Montblanc Star 107340 is 19mm. This width does not conform to conventional commercial standards (18mm and 20mm dominate mass production) and is specific to the proportional design of the 39mm case. Measurement should be taken with callipers at the centre of the lugs, away from the movement cones, to ensure accuracy.

For the yellow gold 107340, alligator leather represents the noblest aesthetic choice, with regular scales creating harmonious contrast with the warm gold tone. An equally excellent alternative is vegetable-tanned calf in warm brown hues (cognac, mahogany), which develops patina over time. For informal daily use, a NATO in canvas or silk offers practicality of replacement whilst maintaining visual elegance.

The 107340 employs standard straight lugs. Using a dedicated spring bar removal tool or small screwdriver, carefully remove the pins securing the strap to the case lugs. Perform this operation on a soft surface (cloth) to prevent scratching the gold. Insert the new 19mm strap, aligning it perfectly within the case lugs, then reinsert the pins. Never force: if the lug does not slide smoothly, verify the width measurement once more.

Yes, any 19mm strap is mechanically compatible. However, verify that the width is precisely 19mm (not incorrectly labelled as 18mm or 20mm) and that the strap thickness does not exceed 3-4mm in the lug insertion zone. Original Montblanc straps have tight manufacturing tolerances; quality bespoke straps replicate these specifications.

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) with moderate daily use typically lasts 3-5 years before requiring replacement. Lifespan depends on frequency of use, exposure to humidity, perspiration and mechanical wear at the flex point. A formal-use strap (occasional wear) may exceed 7 years. Regular maintenance (cleaning, occasional conditioning) significantly extends useful life.