Strap for PR 100 Automatic 38 Stainless Steel / Silver / Bracelet

The lug width of the Tissot PR 100 T049.407.11.031.00 is 19mm. This intermediate size allows a broad choice of artisanal straps in leather, fabric, and rubber, maintaining visual balance with the 38mm case. To verify the lug width, place a ruler between the two spring bars (metal pins) of the case: the internal distance should be exactly 19.00mm.

The ideal strap depends on intended use. For formal contexts, we recommend alligator or vegetable-tanned calf leather, which develops a refined patina over time. For daily wear, box calf or FKM rubber offers superior durability. Chromatically, Prussian black and burgundy enhance the rose gold hands; a navy NATO creates sporty contrast. Material selection should also consider climate: natural leather in temperate environments, rubber in humid climates.

Strap replacement is straightforward. Use a spring bar tool (included with most aftermarket straps) to gently push the spring bars (metal pins) downward. Once extracted, the strap detaches easily. Insert the spring bars into the new strap, aligning them correctly with the slots, then reposition the strap onto the case until you hear a click. Verify that the spring bars are fully seated before wearing the watch.

All straps with 19mm lug width are compatible. Milanostraps.it offers a curated selection of artisanal straps in this size: alligator with vegetable tanning, shell cordovan, box calf, cotton-polyester NATO, and FKM rubber straps. Compatibility is ensured by the standardized lug width; always verify pin thickness for optimal fit. Many artisanal straps include adjustable pins for personalised fitting.

A natural leather strap with vegetable tanning lasts approximately 5–8 years with daily use, provided basic maintenance is observed (occasional drying if exposed to moisture, conditioning with beeswax annually). Vegetable-tanned leather develops a natural patina, acquiring depth of texture and colour: this accelerated ageing is a desired characteristic, not a defect. High-quality alligator or shell cordovan can exceed 10 years of service. FKM rubber straps require minimal maintenance and last 7–10 years before hardening; cotton-polyester NATO straps easily surpass 15 years of occasional use.