Strap for Speedmaster Professional Moonwatch Plexi / See-Through

The 3572.50.00 features a 20mm lug width, a rare measurement in the contemporary market that reflects the constructive proportions of the 1960s. This width allows perfectly proportioned straps and bracelets without lateral protrusions on the brushed case.

Alligator or shell cordovan with vegetable tanning represent the most refined luxury choices consistent with the instrument's identity: natural patina amplifies the vintage character of the case. Alternatively, hammered nappa calf offers daily versatility, while silk NATO maintains the original functional nature of the model.

The strap is replaced by removing the spring bars connecting the lugs to the case ears, using a dedicated spring bar tool. Measure precisely the distance between the bars: it must be exactly 20mm. Insert the new strap's spring bars by applying pressure until they click into place.

Yes, provided they are made specifically for 20mm lug width. Atelier Casati Milano and the online collection milanostraps.it offer artisanal straps compatible with the 3572.50.00, customizable in material, color, and dimensions. Always verify the lug width before purchase.

The lifespan depends on frequency of use and material: vegetable-tanned leathers (alligator, shell cordovan) maintain structure and elasticity for 5-7 years with daily wear, developing an appreciable patina. Nappa calf resists for 3-5 years before requiring replacement. Casati Milano warranty on bespoke straps: 18 months.