Strap for 150th Anniversary Automatic Chronograph

The lug width of the Tissot Heritage T66.1.722.31 is precisely 20 mm. This measurement refers to the distance between the lug attachment points (tip to tip) where the strap fastens. Verifying this dimension before purchasing an aftermarket strap is essential to ensure perfect compatibility and aesthetic stability on the wrist.

For the T66.1.722.31, we recommend genuine alligator for formal occasions, vegetable-tanned calf leather for daily elegance, NATO canvas straps for sporting applications, and FKM rubber for humid or aquatic environments. Your choice depends on intended use: black alligator accentuates the dressy vocation, whilst navy NATO emphasises the chronograph's vintage character.

Strap replacement requires a spring bar tool (featuring a bifurcated tip) to compress the spring bar slightly on each side, liberating the strap from the lugs. Position the tool in the lateral grooves of the lug, press toward the centre, and extract the strap. Insert the new strap, aligning the hole with the spring bar, then release pressure. This delicate operation is executable in minutes by even novice watch enthusiasts.

Yes, provided the lug width is exactly 20 mm. High-quality aftermarket straps—leather, NATO, rubber—are entirely compatible with the T66.1.722.31. We advise against 18 mm or 22 mm straps, which would prove unstable or impossible to fit. An artisanal leather or alligator strap substantially enhances the wearing experience compared to the original bracelet.

A quality artisanal leather strap typically lasts 3-5 years with daily wear, dependent upon factors including solar exposure, humidity, frequency of wear, and maintenance. Vegetable-tanned leather develops patina and becomes increasingly fragile over time, whilst alligator maintains structural integrity longer. Applying conditioning balms every 6-12 months substantially prolongs the strap's serviceable life.