Strap for PRX Chronograph Stainless Steel / Blue

The lug width of the Tissot PRX T137.427.11.041.00 is 20 millimetres, measured between the lateral metal pins on the case. This dimension is critical for compatibility: any replacement strap must respect exactly 20mm, as the integrated case allows no significant tolerances. We recommend always measuring perpendicular with a digital calliper to ensure correct identification.

The Tissot PRX T137.427.11.041.00 benefits most from straps in alligator or vegetable-tanned calf leather, as the watch's retro aesthetic pairs perfectly with the natural textures and character these materials develop over time. For active sports or daily high-intensity use, NATO or vulcanised rubber straps offer versatility without compromising the watch's stylistic identity. The choice depends on context: fine leather for formal wear, synthetic fabric or rubber for dynamic situations.

Changing the strap on a Tissot PRX T137.427.11.041.00 requires a spring bar remover tool to extract the pins from the lugs. Position the watch on a soft surface, locate the small lateral lugs, insert the remover under the pin from below and gently press upward until the strap releases. Repeat on the other side. To install the new strap, align the holes and press the pin until it clicks into place. If unsure, consult a professional watchmaker to avoid damage to the case.

Yes, it is possible to use aftermarket straps from specialist suppliers, provided they respect the 20-millimetre lug width and the internal geometry of the attachment. Not all generic 20mm straps are suitable: the lug depth and slot shape must fit perfectly onto the integrated PRX case to avoid lateral play. Milano Straps offers handcrafted 20mm straps specifically tested on this reference, guaranteeing compatibility and construction quality.

The lifespan of a leather strap on a Tissot PRX T137.427.11.041.00 depends on leather quality and intensity of use. A superior-quality alligator strap lasts 8–12 years with periodic maintenance and rotational rest. Vegetable-tanned calf straps resist 5–7 years before replacement is needed, whilst NATO and rubber straps, being more wear-resistant, easily exceed 10 years. The patina that develops increases aesthetic appeal, transforming the strap into an even more distinctive companion to the watch over time.