Strap for PR 100 Quartz 38 Yellow Gold PVD / Silver / Bracelet

The lug width of the Tissot PR 100 T049.410.33.033.01 is strictly 20 millimetres. This dimension, measured between the inner shoulders of the lugs, is the only size compatible with the 38mm case of this model. A strap of different width (18mm or 22mm) will not fit properly into the lug slots of the case. Verification is straightforward: place a ruler between the two lugs and measure the free space to confirm precision.

The best strap depends on intended usage. For professional environments, black or dark brown alligator leather with vegetable tanning creates classic contrast effortlessly, and develops patina over time that harmonises with the steel case. For durability, shell cordovan offers natural density that resists tears and develops characteristic lustre. For sports use or humid environments, cotton NATO or FKM rubber straps maintain the minimalist profile without functional compromise.

To change the strap, use a dedicated spring bar tool or visit a specialist watchmaker. Position the tool on the spring of the first lug, apply gentle inward pressure, and extract the spring from its housing. Repeat for the second lug. Insert the springs of the new strap into the slots, ensuring they are fully secured. This operation requires no sophisticated equipment, but gentle handling is essential to avoid scratching the steel case.

Yes, provided the strap has a strictly 20-millimetre lug width. The steel case of the PR 100 is engineered to Swiss specifications, therefore it accepts exclusively straps of this dimension. Any strap manufactured in vegetable-tanned leather, alligator, shell cordovan, NATO or FKM rubber at 20mm will fit perfectly into the lug slots. Always verify the product specification before purchase.

The lifespan of a natural leather strap depends on tanning method and usage patterns. A vegetable-tanned leather strap lasts approximately 18–24 months with daily professional use; its resistance increases if subjected to regular drying cycles and protected from prolonged humidity. Shell cordovan, owing to its natural density, can last 3–4 years or longer. FKM rubber, free from organic fibres, offers even greater durability (5+ years), but requires regular cleaning. The importance of maintenance—gentle cleaning, drying, periodic conditioning with natural balm—cannot be understated for extending the strap's useful life.