Strap for PR 100 Quartz Chronograph Stainless Steel - Yellow Gold / Silver / Bracelet

The lug width of the Tissot PR 100 T150.417.22.031.00 is 20mm. This measurement represents the internal distance between the two lugs on the case. To verify it correctly, position a digital calliper between the strap attachment points on the case: the reading should correspond to 20mm. This specification is standard across all models in the PR 100 family of this reference.

The ideal strap depends on intended use. For formal contexts, full-grain alligator in dark brown or black satin finishes enhance the blue dial. For daily sporting wear, English calf with waxy finish or fluoroelastomer rubber strap ensures durability and comfort. For versatility, a canvas NATO strap delivers sport-casual aesthetics. Vegetable-tanned leather is recommended for natural ageing and superior mechanical resistance.

Strap replacement requires a specialised tool called a spring bar remover. Place the watch on a soft surface, locate the two small holes flanking the lower lug, insert the remover tool into one hole to compress the internal spring, extract the worn strap. Repeat on the opposite side. Insert the new 20mm strap by aligning the holes with the springs and press gently until you hear a click. Verify the strap is equidistant from both lugs.

Yes, provided it is engineered for 20mm lug width. A quality aftermarket strap, particularly if artisanally crafted, often improves the wearing experience over the original. Specialised manufacturers offer vegetable-tanned leather, hand-stitched finishes and custom deployante buckles. The critical factor is confirming 20mm lug width compatibility and construction quality of the leather or material. A well-constructed strap will extend the watch's lifespan.

A natural leather strap from vegetable-tanned leather, with moderate daily use and proper maintenance, typically lasts 2–4 years. Longevity varies according to leather type (alligator outlasts calf), climate (humidity and perspiration accelerate wear), and intensity of use. The strap will age, developing patina and natural creasing. Gentle conditioning with specialist creams annually prolongs lifespan. For intensive use or humid environments, consider rubber or quality synthetic materials.