Patek Philippe
Calatrava 5089G-038— lug 20mm

The lug width of the Patek Philippe Calatrava 5089G-038 is exactly 20 mm. This measurement is the distance between the centres of the spring bar holes. It is essential to verify this dimension before purchasing an aftermarket strap to ensure correct fitting without forcing.

African alligator leather with vegetable tanning is the most suitable choice for the white gold Calatrava: the squared grain of the leather naturally complements the geometry of the case, and the natural patina over time enhances the watch's elegance. The ideal thickness is 1.2–1.4 mm. Quality alternatives include shell cordovan (maximum durability) and box calf (wrist comfort).

The change requires a specific tool (spring bar extractor) or a small flathead screwdriver. Insert the tool into the side hole of the spring bar and press gently inward to extract the bar. Subsequently remove the bar from the old lug, position it on the new strap and reinsert it into the seat. We recommend this operation at a jeweller or at Casati Milano to avoid damage.

Yes, provided the strap is constructed specifically for 20 mm lug width. Brands like Casati Milano produce handcrafted straps with precise tolerances (±0.1 mm). It is essential to verify that the strap is finished with double stitching and quality materials (alligator, calf, shell cordovan, vegetable tanning) to respect the elegance of the Calatrava.

Durability depends on the material and usage. An alligator strap with vegetable tanning lasts 3–4 years with daily wear. Shell cordovan can exceed 5–6 years. Box calf lasts 2–3 years. Vegetable tanning develops a natural patina over time, while chrome tanning maintains its appearance but has lower durability. A Casati Milano quality strap is guaranteed for 18 months against manufacturing defects.