Strap for Prestige Gold Oval 20.4

The lug width of the Longines Les Grandes Classiques L4.225.7.11.6 is 20mm. This measurement represents the internal distance between the lugs (spring bars) that attach the case to the strap. To verify this dimension, simply measure the distance between the two metal bars using a digital calliper. This standardisation ensures perfect compatibility with all artisanal straps specifically crafted for this width.

For a yellow gold Longines, alligator remains the most versatile choice: its fine grain naturally complements the warmth of the precious metal. Shell cordovan in mahogany creates aristocratic elegance, whilst vegetable-tanned calf leather develops a patina that evolves over time, synchronising ageing with the case. For daily versatility, a rubber or NATO fabric strap maintains the formal lightness without functional compromise.

To change the strap, you must access the lug pins via a spring bar tool (a specialised instrument for removing elastic bars). Position the tool in the small lateral groove of the pin, press gently downward to disengage the internal spring, and the pin will retract, allowing removal of the old strap. Repeat on the other side. Installing the new strap follows the reverse process: insert the pin into the strap hole, press the spring gently with the spring bar tool until the pin clicks into the safety position.

Yes, artisanal straps of superior quality for 20mm lug width are fully compatible with the Longines L4.225.7.11.6. Specialists in premium leathers such as alligator, shell cordovan and vegetable-tanned calf offer options that often surpass OEM straps in quality, allowing personalisation in colours, finishes and closure systems (deployant, classic buckle, pin buckle). The crucial factor is verifying that the lug width is exactly 20mm to ensure perfect fit on the lugs.

The durability of a leather strap depends on the material and frequency of wear. A high-quality artisanal alligator or calf strap, with proper maintenance (avoiding excessive humidity and gentle cleaning), guarantees 4-7 years of daily use. Shell cordovan can last 5-8 years thanks to its superior fibre density. Vegetable tanning develops a natural protective patina that improves impermeability over time. Environmental factors such as humidity, sun exposure and perspiration influence longevity, as does wearing frequency: an occasionally worn strap can remain intact for 10+ years.