Strap for TT1 Chronograph Stainless Steel - Ceramic / Black / Rubber

The lug width of this model is precisely 25mm. This measurement is taken by positioning a digital calliper between the case's horizontal pins at the base of their protrusion. Verification before purchasing an aftermarket strap is critical, as even a 0.5mm discrepancy will result in visible misalignment during wear.

For this 45mm chronograph, we recommend vegetable-tanned calf leather or alligator straps, which enhance the case's technical geometry. For intensive sport use, a reinforced canvas NATO or FKM rubber strap maintains stability and practicality. Avoid thin or fine-grained materials: the TT1 demands robust materials that dialogue with its racing character.

Remove the watch and place it on a soft pad. Using a spring bar tool, gently lift the elastic pins holding the current strap. Insert the new strap, aligning its holes with the case attachments, then reinsert the pins into the lug holes. Verify that the strap is firmly secured on both sides before wearing the watch.

Yes. Any strap with a 25mm lug width is compatible with your TT1. Milano Straps offers a curated selection of Italian leather, alligator, NATO, and rubber straps, all available in this specific size. Each piece is handcrafted and customisable by Casati Milano on an appointment basis for those seeking a bespoke solution.

A vegetable-tanned leather strap, with daily wear, typically lasts 3–5 years. Longevity depends on exposure to humidity, direct sunlight, and frequency of use. Natural leather develops patina and texture over time—a process collectors appreciate as aesthetic evolution. Regular maintenance with natural wax and storage in dry conditions significantly extends strap life.