Strap for Classique Date Automatic 39mm Two Tone Guilloche

The lug width of the Montblanc Star 113824 is 19 millimetres. This measurement is specific to this model and must be verified using a digital calliper positioned between the inner points of the lugs, excluding the buckle and passant. It is not compatible with 18mm or 20mm straps.

For the 113824, alligator leather represents the most aesthetically coherent choice: the geometric and ordered texture of the scales naturally dialogues with the architecture of the two-tone case. Shell cordovan in warm tones is the most sophisticated alternative, with a patina that matures over time. For daily versatility, vegetable-tanned calf leather offers controlled ageing and superior tactile density.

Changing the strap requires the use of a spring bar removal tool. Position the curved end beneath the spring that supports the lug, apply gentle upward pressure and simultaneously withdraw the lug from the case. Repeat on the opposite side. Align the new lugs with the holes and compress them until the spring engages the blocks. Verify that the lugs are perfectly locked before wearing the watch.

Yes, absolutely. Aftermarket 19mm straps are fully compatible with the 113824. Milanostraps.it produces artisanal leather straps in premium materials specifically for this lug width, with finishes and materials that enhance the two-tone case in red gold and stainless steel. Artisanal quality often exceeds that of original straps.

A quality leather strap, made with vegetable tanning, maintains structural integrity for 4-6 years of daily use, varying depending on climatic conditions and frequency of exposure to water and humidity. Shell cordovan, being a denser leather, can last up to 8-10 years. The patina that develops over time is natural and gives character to the strap. Periodic maintenance with specific creams significantly extends longevity.