Strap for PrimaLuna Automatic 30 Arabic

The lug width of the Longines PrimaLuna L8.113.4.16.6 is 8 millimetres. This specific dimension belongs exclusively to the ladies' segment of Swiss haute horlogerie and requires purpose-made straps of this exact width. To verify, use a digital calliper, inserting it between the two lugs at the strap attachment point.

The best strap depends on your use case and personal preference. For absolute formality, we recommend vegetable-tanned alligator in black. For everyday elegance, medium brown calf offers noble ageing. For modern versatility, technical rubber or grey NATO allows you to wear the PrimaLuna in sporting contexts without stylistic compromise. All materials must be compatible with the 8mm lug width.

The PrimaLuna L8.113.4.16.6 strap is changed using a spring bar removal tool. Locate the holes at the strap attachment points on the lugs, gently push inward with the tool to compress the spring bar, remove the old strap and insert the new one. Ensure the new strap is dimensioned for 8mm lugs. If unsure, consult a professional watchmaker.

Yes, provided the strap is specifically dimensioned for 8mm lugs. Many international brands produce compatible straps, but always verify the technical specifications declared by the seller. Bespoke straps handcrafted by Casati Milano guarantee absolute compatibility and superior construction quality, with personalisation options in leather choice, length and stitching thread.

The lifespan of a leather strap depends on the quality of the tanning, frequency of use and maintenance. A high-quality vegetable-tanned bespoke strap typically lasts 3–5 years with daily wear, whilst developing a noble patina that increases aesthetic appeal. With occasional use or proper care (periodic cleaning and moisture protection), durability can exceed 7 years. Casati Milano's 18-month warranty attests to product construction integrity.