Strap for ProPilot X Calibre 400 Titanium / Pink / Bracelet

The lug width is 20 millimetres. This dimension is standard for mid-size cases measuring 39 mm and ensures harmonious proportion between case diameter and strap attachment surface. The measurement is taken from the inner edge of one lug to the inner edge of the opposite lug, not from case diameter.

Given the aeronautical context and titanium case material, straps in vegetable-tanned alligator or calf leather with vegetable tanning offer discreet elegance without additional weight. For intensive operational environments, NATO straps in high-density nylon guarantee certified reliability, whilst structured FKM rubber ensures superior grip in humid or salt conditions. A titanium deployante maintains aesthetic and mechanical coherence.

Position the watch on a soft mat, use a spring bar tool to remove the elastic pin from the first lug, extract the old strap, insert the new spring bar into the lug hole and snap the pin into the opposite seat. Verify that the strap is securely fastened before wearing the watch. For straps with deployante, check the integrity of the closing mechanism after changing.

All straps manufactured to 20 mm lug width specification are compatible with this model, provided they respect this dimension. On MilanoStraps you will find leather, NATO, rubber and shell cordovan, all certified and ready for shipment. Always verify that the supplier explicitly specifies compatibility with 20 mm lugs.

Durability depends on use, tanning method and maintenance. A calf leather strap with vegetable tanning, used regularly but not daily, maintains structural integrity for 3–4 years. Constant exposure to perspiration, salt water or UV rays accelerates wear. Applying neutral balms periodically and protecting from excessive moisture extends useful life. NATO and rubber straps offer superior durability in extreme environments.