Strap for Speedmaster Mark III Blue

The lug width of this model is 20 millimetres. This measurement represents the space between the two lugs of the case where the spring bars are inserted to secure the strap. It is essential to measure from centre to centre of the anchor holes, perpendicular to the dial plane, to ensure precise compatibility with aftermarket straps.

Vegetable-tanned alligator is the most sophisticated choice, as its natural grain evolves over time creating a patina that perfectly complements the vintage-sport character of this model. Brown calf and shell cordovan are excellent alternatives. For robust modern solutions, FKM rubber allows precise lug end shaping while maintaining the original visual integration.

The ST 176.0002 B features a particular architecture with integrated bracelet: strap changing requires the use of a dedicated tool (spring bar tool) to compress the pins and extract them from the lugs. Due to the integral welding, it is essential to proceed with extreme caution to avoid damaging the lug edges. If you are not experienced, we recommend contacting a specialised atelier such as Casati Milano.

All straps with 20mm lug width are compatible with this model. Our collection includes options in vegetable-tanned alligator, calf, FKM rubber and NATO canvas, available in various colours and finishes. We recommend always verifying the case width (41mm) to ensure harmonious aesthetic proportions, avoiding straps that are too thick or too thin.

Durability depends on daily use and leather quality. Alligator and shell cordovan with vegetable tanning guarantee 5-7 years of continuous use, developing a desirable patina. Calf resists 4-5 years before showing signs of wear. The Casati Milano atelier offers an 18-month warranty on all bespoke straps and provides maintenance and reconditioning services.