Strap for Williams Chronograph Carbon / Valterri Bottas

The lug width of the Oris Williams 01 674 7725 8784-Set 42454FCTB is 24mm. This measurement defines the distance between the two lugs of the case and is essential for purchasing a compatible strap. To measure correctly, use a digital calliper positioned perpendicularly between the internal points of the lugs.

There is no universal choice, as it depends on intended use. For dynamic and sporty activities, a vulcanised rubber strap is ideal for durability and grip. For a more elegant pairing, an alligator with vegetable tanning in a dark colour offers natural patina and refinement. A ballistic nylon NATO strap represents the most versatile compromise between functionality and aesthetics.

To change the strap, you must remove the current one using a springbar remover or a small flat screwdriver. Position yourself above a cloth to avoid losing the small elastic pins. Compress the springbar downward and extract the pin from the lugs. Insert the new strap into the springbar, ensuring the spring is correctly positioned, then click the strap into the lugs. If you are not experienced, entrust the task to a professional watchmaker.

Yes, aftermarket straps with 24mm lugs are fully compatible with your Williams. The depth of the lugs (approximately 5-6mm) allows the use of thick-gauge alligator and robust deployant clasps without interference with the case or crystal. Ensure the strap has the correct lug width measured internally between the lugs.

The lifespan of a natural leather strap depends on usage and material quality. An artisanal alligator or calf leather with vegetable tanning can last 3-5 years with moderate daily use if subjected to regular maintenance (gentle cleanser, natural drying). Constant exposure to sweat, water, and sunlight accelerates ageing. Rubber or NATO straps offer greater longevity under sporty use conditions.