Strap for PRX Powermatic 80 Stainless Steel / Tiffany

The lug width of the Tissot PRX T137.407.11.091.01 is precisely 12 mm. This measurement represents the perpendicular distance between the two vertical lugs of the case. An aftermarket strap must have an exactly 12 mm lug width to fit correctly without lateral play or forcing into the Tissot attachments.

The Tissot PRX T137.407.11.091.01 pairs excellently with calf leather, alligator, or shell cordovan straps, which enhance the integrated geometry of the case. For daily sportive use, a NATO strap or FKM rubber strap provides water resistance and durability. Your choice depends on context: leather for formal occasions, NATO or rubber for outdoor activities.

Changing the strap requires a small screwdriver (1.0–1.2 mm) and a magnifying glass. The case lugs house small retention screws: unscrew them carefully to avoid damage, then insert the lugs of your new 12 mm strap and retighten firmly. Avoid excessive torque to prevent case damage. Alternatively, Casati Milano offers strap-change services by appointment at their bespoke atelier.

Yes, any strap with a 12 mm lug width and solid construction is fully compatible with the Tissot PRX T137.407.11.091.01. Verify that the lug width is correctly measured (distance between vertical lugs) and that attachment springs are stainless steel or titanium. Milano Straps supplies artisanal 12 mm straps, tested to Tissot tolerances and guaranteed against manufacturing defects.

A quality leather strap (calf, alligator, shell cordovan) typically lasts 2–4 years of daily wear, depending on ambient humidity, sun exposure, and maintenance. Vegetable-tanned leather tends to last longer than chrome-tanned leather. NATO or rubber straps offer superior longevity (5–7 years) but less aesthetic refinement. Periodic replacement is advisable for both hygiene and to protect the case from oxidation caused by trapped moisture.