Strap for Le Locle Powermatic 80 39.3 Stainless Steel / Black / Bracelet

The lug width of this model is 19 mm. This measurement represents the distance between the spring bar attachment points on the case. To verify compatibility of a new strap, measure precisely using a digital calliper: any deviation will result in unstable fit and risk of watch loss.

The ideal strap depends on intended use. For elegant-daily wear, we recommend shell cordovan with vegetable tanning or gummed calf leather in brown: both respect the Le Locle's classical heritage. For sporting versatility, a NATO in naturally dyed cotton or slate grey maintains design fidelity. For aquatic environments, quality technical rubber offers practicality without aesthetic compromise.

The change is straightforward: use a spring bar tool (specialist tool, available at any jewellery shop) to apply light pressure on the spring pins at both ends of the lug. The spring will release from its seat. Remove the old strap, align the new strap's pins with the case holes, and push until you hear a slight click of closure. Avoid hammers or heavy tools: stainless steel resists damage, but micro-scratches remain visible.

Yes, absolutely. The 19 mm lug width is a widely adopted standard in classical watchmaking, so the supply of quality aftermarket straps is extensive. We recommend specialists who respect the visual proportions of the case: a strap thicker than 4 mm will visually overweight the model; one thinner will make it appear fragile. Trust producers who understand the value of Swiss métier.

Durability varies by material: shell cordovan with vegetable tanning resists 5–8 years of daily wear; gummed calf leather guarantees 3–4 years; fabric NATO straps last 7–10 years. Technical rubber paradoxically has a shorter lifespan (2–3 years) because elastomers degrade with UV and heat. Store the strap in a cool, dry place; apply minimal protective treatments (beeswax for cordovan, specialist oils for calf) every six months to extend lifespan and maintain legibility.