Strap for Le Locle Automatic

The lug width is 20mm. This is a specific dimension for this model, not a widely distributed commercial standard. Always verify with a digital calliper the internal distance between the case attachment pins before ordering an aftermarket strap.

It depends on use: vegetable-tanned calf leather in dark brown creates a balanced contrast with the white dial; alligator in black is ideal for formal contexts; navy NATO or rubber offers aesthetic reversibility and practical everyday wear. The T41.5.413.73 does not require distracting elements, so colour should remain sober.

Use a spring bar tool to release the lateral attachment pins. Position the watch face-down on a soft surface to protect the crystal. Push the pin towards the centre of the case to disengage the previous strap, then insert the new one, ensuring both pins are securely seated in their slots.

Any strap with a 20mm lug width is compatible, provided the pins comply with the standard 1.5mm diameter. Always verify the seller's specifications. Avoid straps with loose tolerances: imprecise seating compromises aesthetics and change mechanics.

A vegetable-tanned calf strap typically lasts 3-5 years of daily use, developing an ennobling patina over time. Shell cordovan exceeds 10 years. Longevity depends on ambient humidity, direct sun exposure, and maintenance frequency. Annual application of natural oil (e.g. neatsfoot oil) significantly extends useful life.