Strap for TT1 Day Date Stainless Steel - Ceramic / Black / Rubber

The TT1's lug width is 25mm, measured centre-to-centre between the two spring bars. This non-standard dimension reflects the specific geometry of the 43mm case and is essential for selecting a compatible aftermarket strap.

Material selection depends on intended use: for elegance, vegetable-tanned leather in calf or alligator in dark brown tones. For racing application, a ballistic Cordura NATO in grey or navy blue. For low-maintenance durability, technical rubber with anti-slip texture in black.

Use a digital calliper or flexible ruler, measuring the distance between the centres of the two spring bar pins protruding from the case. For the TT1, the result must be exactly 25mm. Do not include the retaining rings in your measurement—only the space between pin centres.

Yes, artisanal aftermarket straps in 25mm width are available. Milano Straps offers a curated selection of Italian leather, NATO fabric, and technical rubber specifically compatible with the TT1 and other 25mm references, customisable upon request.

A vegetable-tanned leather strap lasts 3–5 years with daily wear, developing natural patina over time. Keep the leather dry, avoid prolonged moisture exposure, and apply protective wax once annually. Replacement is straightforward: the spring bars are extracted from both sides of the case.