Strap for Classique Date Quartz 39mm Black

The lug width for the Montblanc Star 108769 is precisely 19 millimetres. This dimension defines the internal space between the two lugs of the case and is essential for selecting a compatible strap. We recommend measuring directly with a digital calliper at the deepest point between the lugs, verifying a maximum tolerance of ±0.5 millimetres.

For this reference, Mississippi alligator represents the most balanced choice: it offers elegance without ostentation and ages beautifully. Alternatively, Tuscan leather with vegetable tanning provides a more rustic proposition with a captivating patina, whilst Austrian Swift ensures superior density. For casual use, technical NATO fabric straps offer chromatic versatility and replacement practicality.

The procedure requires a spring bar tool (small Y-shaped implement available at any watchmaker's). Position the watch on a soft surface, locate the spring bar that retains the strap, insert the tool from the internal side of the case to compress the bar, gently extract the old strap, fit the new one by threading one end of the bar into its seat first, then release the tool's pressure to secure the opposite end. If unfamiliar with the procedure, entrust this to a professional watchmaker.

Yes, provided they are manufactured with a 19-millimetre lug width. Artisanal straps from Casati Milano and our partners are entirely compatible: the selection of premium materials (alligator, Tuscan leather, Swift, Barenia) guarantees superior construction quality to the original strap. The important thing is always to verify the lug width before purchase.

Durability varies according to material and usage. Mississippi alligator lasts between 5 and 8 years with daily wear; Tuscan leather with vegetable tanning, thanks to natural resilience, easily reaches 7–10 years. Austrian Swift offers durability similar to alligator. Barenia tends to age more rapidly (3–5 years) but develops a captivating patina. In all cases, regular maintenance (occasional application of dedicated conditioner) significantly extends the strap's lifespan.