Strap for Conquest Classic Automatic 29.5 Stainless Steel / Diamond / MOP

The lug width of the Longines Conquest Classic L2.285.0.87.6 is 15mm. This dimension is specific to this model and requires straps constructed with precise tolerances. Measurement must be taken perpendicularly across the centre of the case, from the inner point of one lug to the other, excluding any protruding decorative elements.

For this Conquest Classic, alligator straps are recommended for maximum elegance, vegetable-tanned calf for sobriety, or shell cordovan for durability and elasticity. The choice depends on intended use: formal versus daily. Alligator emphasises the slender case proportions, whilst calf develops a deep patina over time.

Strap replacement requires a specific strap removal tool (spline or angled screwdriver). Position the watch on a soft cushion to protect the case, then carefully extract the lug pins. Insert the new strap, verifying that the ends seat perfectly against the case lugs. Ensure that the buckle or deployante clasp is correctly secured.

Yes, absolutely. Quality aftermarket straps maintain the constructive integrity of the watch, provided they are manufactured with correct lug width tolerance (15mm) and use noble leathers. Milano Straps offers handcrafted 15mm straps customisable in colour, stitching thread and length, with 18-month warranty.

A noble leather strap (alligator, calf, shell cordovan) with vegetable tanning lasts an average of 3–5 years with regular daily use. Durability depends on: frequency of use, sun exposure, humid climate, maintenance. Conscious storage in a dry environment and periodic cleaning significantly extend the functional life of the strap.