Strap for Index Automatic Stainless Steel / Silver / Bracelet

The lug width is 20 millimetres. This measurement defines the space between the spring bars attached to the watch case. Always verify this dimension before purchasing an aftermarket strap, as any discrepancy will prevent correct installation.

Given the subdued dial and minimalist architecture, we recommend straps in hand-dyed alligator or vintage calf leather with neutral-toned finishes (black, dark brown, honey brown). For formal wear, aged shell cordovan develops an evolving patina over time. For daily use, cotton-polyester NATO fabric offers practicality without aesthetic compromise.

You will need a spring bar tool to compress the small pins extending from the case lugs. Position the tool's tip in the grooved slot of each pin, compress gently, and slide the old strap downward. Align the new strap's holes with the lugs, then release pressure to lock the pins in place. The operation typically takes 2-3 minutes for first-time users.

Yes, milanostraps.it offers a collection of 20mm straps customisable in size, colour, material (vegetable-tanned leather, alligator, shell cordovan, technical rubber) and details such as embroidered initials and stitching thread colour on request. All straps are tested for compatibility with 20mm lugs and dispatched ready to fit.

A high-quality artisanal leather strap, whether vegetable-tanned or alligator, typically lasts 3-5 years with moderate daily use. Longevity depends on exposure to moisture, perspiration, and UV radiation. Leather naturally develops a patina that increases its aesthetic value over time. Rubber and synthetic materials have similar lifespan but less colour evolution. Casati Milano provides an 18-month guarantee on all bespoke personalised straps.