Strap for M1/01

The lug width of the SevenFriday M1/01 is 28 mm, an atypical dimension in the watchmaking landscape. SevenFriday selected this generous measurement to emphasise the perceived solidity of the 47 mm square case. To verify compatibility, measure perpendicularly between the two horizontal lugs with a ruler: the result must be exactly 28 mm.

For the M1/01, we recommend straps in dark alligator with natural tanning or calf with vegetable tanning. Alligator creates elegant contrast whilst maintaining coherence with the satin-finished stainless steel case, whilst calf patinas over time, developing personal texture. Both materials dialogue perfectly with the industrial and minimalist aesthetic of the model.

To change the strap, use a dedicated tool (spring bar tool) or consult a professional watchmaker. Position the tool beneath the lug, release the spring clasp, extract the lug and replace it with the new strap. Ensure the lug is compatible with the 28 mm width before proceeding. Casati Milano offers professional assistance by appointment for bespoke customisations.

Yes, but with caution: the aftermarket strap must feature 28 mm lugs. Not all mainstream manufacturers offer this non-standard measurement, which is why Italian craftsmanship proves essential. Milano Straps presents a collection of customisable 28 mm straps, and the Casati Milano atelier, specialising in bespoke customisations, represents the ideal solution to guarantee compatibility and sartorial quality.

A high-quality leather strap, such as those offered by Milano Straps in alligator or vegetable-tanned calf, typically lasts 3–5 years with daily use and routine maintenance. Longevity depends on exposure to water, perspiration and direct sunlight. Vegetable-tanned leather tends to patina and refine over time, developing personal character. To maximise durability, we recommend rotating between straps and periodic cleaning with neutral soap.