Strap for Speedmaster Chronoscope Master Chronometer Stainless Steel / Silver / Calf

The lug width for this model is exactly 21mm. This width is specific to the Chronoscope 329.32.43.51.02.001 and must correspond to the internal space between the lugs of the case. A 21mm strap ensures proper fit without gaps or excess width.

Teak brown alligator offers maximum elegance while maintaining technical character. Vegetable-tanned calf develops patina over time. Structured vulcanized rubber remains the authentically sporty choice, true to its heritage as a pilot's chronograph. The choice depends on your primary use context.

Remove the current strap and measure the internal space between the two metal lugs on the case using a caliper or ruler. This value is your lug width. In the case of the Chronoscope 329.32.43.51.02.001, the result must be exactly 21mm to ensure compatibility.

Yes, any strap with a 21mm lug width is compatible. It is essential to verify the exact width: 20mm or 22mm straps will not fit correctly into the lugs. Choose specialized artisans who guarantee precise tolerances and materials of quality comparable to the brand.

A quality leather strap, with vegetable tanning or alligator, lasts an average of 3-5 years with moderate daily use. Wear depends on exposure to sweat, moisture and sunlight. An alternative is to rotate multiple straps to distribute wear. Casati Milano offers an 18-month warranty on every personalized creation.