Strap for PrimaLuna Automatic 26.5 Yellow Gold MOP

The Longines PrimaLuna L8.111.6.87.6 features 6mm lug width. This dimension is the fundamental technical specification for selecting compatible straps. Always verify the measurement with callipers to ensure correct installation.

For the proportional architecture of the 26.5mm yellow gold case, an alligator strap with fine grain in dark tones (brown or black) paired with a yellow gold buckle represents the most elegant choice. Excellent alternatives include aged shell cordovan or vegetable-tanned calf leather. Straps in grey or silver tones are not recommended, as they disrupt the chromatic harmony with gold.

Strap replacement requires a spring bar tool. Position the watch with the strap facing downward, insert the tool into the small lateral slots of the spring bar and push to release it. Once the bar is extracted, slide off the old strap and install the new one. This procedure is delicate on luxury watches—if inexperienced, consult a professional.

Yes, aftermarket 6mm straps are entirely compatible. The key is selecting artisanal-quality straps that respect the watch's aesthetic proportions. Avoid economical, low-quality variants: the timepiece deserves noble materials such as alligator, shell cordovan, or premium-grade calf leather.

A quality leather strap, when subjected to regular maintenance (weekly cleaning and monthly conditioning), typically lasts between 3 and 5 years in daily use. Factors such as humidity, sun exposure, and wrist perspiration influence longevity. Shell cordovan straps, owing to their dense fibrous structure, tend to outlast standard calf leather variants.