Strap for Chemin Des Tourelles Chronograph Automatic Stainless Steel / Silver / Bracelet

The lug width (misura ansa) of the Tissot Chemin Des Tourelles T139.462.11.038.00 is 21 millimetres. This dimension represents the internal spacing between the two horizontal attachment lugs of the case where the strap is fitted. It is a less common standard compared to 20mm or 22mm, therefore requiring specifically designed straps or bespoke manufacturing.

Selection depends on usage and aesthetic preference. An alligator strap with vegetable tanning enhances the sport-elegant nature of the Swiss chronograph and develops organic patina over time. Dark brown or black calf leather offers chromatic versatility and swift transitions between formal and informal contexts. Vulcanised FKM rubber remains the most technical and durable solution for outdoor activities, whilst a Cordura NATO strap provides economical chromatic reversibility.

The procedure requires specialised tools (spring bar extractors, precision pushers). The case lugs on this 42mm model feature steel pins that must be extracted gently to avoid scratching. We recommend entrusting the operation to a qualified watchmaker or contacting Atelier Casati Milano for consultancy: our artisans possess correct tools and expertise with 21mm lug width to guarantee perfect fits.

Yes, provided the strap is designated for 21mm lug width. Aftermarket straps of artisanal quality (such as those offered by milanostraps.it) offer certified compatibility and superior materials compared to Tissot OEM accessories. Always verify lug width and consult the vendor to confirm compatibility with your specific case.

Durability varies based on material, tanning method and usage patterns. An alligator or crocodile strap with vegetable tanning, if properly maintained (periodic cleaning, drying after wetness exposure), can last 5–10 years before requiring aesthetic reconditioning. Mid-range calf leather lasts 2–4 years with regular use. Vulcanised FKM rubber resists 7–10 years with correct maintenance. Prolonged exposure to moisture, direct sunlight and perspiration accelerates ageing; in controlled environments, longevity increases significantly.