Strap for PrimaLuna Quartz 23 Two Tone Diamond

The lug width of the Longines PrimaLuna L8.109.5.95.6 is 6 millimetres. This measurement is specific to the proportions of the 23-millimetre case and must be respected rigorously when selecting a strap, as even a minor variation (0.5 mm) could compromise fit and damage the lugs.

We recommend alligator in deep tones (burgundy, navy, taupe grey) that enhances the two-tone case, or vegetable-tanned calf leather that develops a fascinating patina over time. Alternatively, an FKM rubber strap ensures versatility and summer comfort whilst maintaining aesthetic balance with such an elegant and compact case.

Use a dedicated spring bar tool to gently compress the lug terminals. Position the tool in the groove of the terminal, push towards the case centre, and slide out the old strap. Insert the new strap by aligning the terminals with the case lugs and verify that the insertion clicks are audible and the strap is firmly secured.

Yes, provided the strap has a certified 6-millimetre lug width and its width does not exceed the edges of the 23-millimetre case. Milano Straps offers artisanal compatible straps in various materials (alligator, calf, rubber) manufactured to the micrometric specifications of this model.

Durability depends on material and usage. A quality alligator strap lasts 4-6 years with standard maintenance (annual conditioning). Vegetable-tanned calf resists 3-5 years. FKM rubber maintains performance up to 5-7 years. Milano Straps guarantees 18 months on bespoke straps, with the option to replace worn terminals.