Strap for Conquest Chronograph Ceramic Bracelet

The lug width of the Longines Conquest L3.661.4.56.7 is 21 millimetres. This measurement falls outside standard industrial sizing, so it is advisable to verify it with a digital calliper positioned between the lug pins on the case to ensure precise compatibility with aftermarket straps.

For this stainless steel and ceramic chronograph, alligator is the most natural choice for formal aesthetics, whilst calf leather with vegetable tanning offers visible ageing and personal patina over time. Shell cordovan represents the pinnacle of durability combined with softness. Rubber or NATO straps instead emphasise the tool-watch character of the timepiece.

To change the strap, a spring bar tool is required, used with care. Position it beneath the lug pin, applying gentle inward pressure until the pin retracts partially. Remove the old strap and insert the new one, ensuring the pin is fully seated. Repeat on the opposite side of the case. If you prefer to avoid the risk of scratches, consult a certified watch service centre.

Yes, as the 21mm lug width is a standard measurement for this case, aftermarket compatible straps can be used. On milanostraps.it you will find a selection of 21mm straps ready for dispatch, customisable in material, length, stitching thread and details. There is also the option of commissioning a fully custom creation through the Casati Milano atelier.

Longevity depends on the type of leather and wear patterns. An alligator or shell cordovan will last between 5 and 10 years with daily use, acquiring patina and character. A vegetable-tanned calf leather requires more maintenance (periodic conditioning) but can last 3–5 years whilst maintaining a robust appearance. Casati Milano straps carry an 18-month warranty on craftsmanship.