Strap for TimeWalker Date Automatic 4810 39 Silver / Red Gold Numerals

The lug width of the Montblanc Timewalker 105813 is precisely 20mm. This technical specification determines compatibility with aftermarket straps and must be adhered to for secure and safe wear. Measurement is taken between the inner shoulders of the case lugs.

For everyday use, we recommend a vegetable-tanned calf leather strap, which develops a rich patina naturally over time. For formal occasions, an alligator strap delivers uncompromised elegance. For dynamic environments and water exposure, vulcanised rubber or NATO fabric straps provide practicality and durability.

Strap replacement involves removing the lateral spring bars (spilles) that pass through the case lugs. Use a dedicated spring bar tool to extract the pins without damaging the case. Align the new strap's internal holes with the pin, then reinsert until you hear or feel the security click.

Yes, the 20mm lug width is a widely adopted standard in the artisanal strap market. MilanoStraps offers a comprehensive collection of 20mm-compatible straps in multiple materials—alligator, vegetable-tanned calf, shell cordovan, NATO, and rubber—specifically engineered for Timewalker 105813 compatibility.

Lifespan varies by material and usage patterns. Vegetable-tanned calf typically lasts 3-5 years with regular daily wear. Alligator, being denser, can last 5-7 years. NATO fabric typically lasts 4-6 years. Vulcanised rubber, being water-resistant, lasts approximately 3-4 years. Regular maintenance—gentle cleaning and annual conditioning—significantly extends longevity.