Strap for PrimaLuna 34 Automatic Moonphase Stainless Steel - Yellow Gold / Silver - Roman / Bracelet

The lug width of the Longines PrimaLuna L8.126.5.79.7 is precisely 8mm. This uncommon measurement is characteristic of the original model and has been maintained in the contemporary reinterpretation. To verify it, measure the distance between the two internal attachment holes of the case using a digital calliper. Do not use standard 18mm or 20mm straps, as they would not be compatible.

The best strap depends on your lifestyle and aesthetic preferences. Alligator is the classic choice that amplifies the refinement of the yellow gold and stainless steel case; vegetable-tanned calfskin offers pronounced texture and evolving patina over time; rubber or caoutchouc guarantees daily waterproof durability without aesthetic compromise. For the PrimaLuna, we recommend chocolate brown, glossy black, deep burgundy, or grey-tortoiseshell tones, avoiding saturated colours that would unbalance the delicate case proportions.

Strap replacement requires a specific tool: a spring bar tool (or lug remover). Position the watch on a flat surface, locate the small lateral orifices of the case, insert the tool to compress the internal spring of the lug, and slide the old strap outward. Repeat on the other side. Subsequently, insert the new 8mm strap while keeping the spring compressed until complete engagement. If unsure, the Casati Milano atelier offers the change service with a guarantee of perfection.

Yes, provided the lug width is precisely 8mm. Artisanal aftermarket straps often offer superior quality compared to originals, with carefully selected leathers and customised finishes. Milano Straps specialises in creating 8mm straps compatible with the Longines PrimaLuna L8.126.5.79.7, allowing you to choose leather type, colour, stitching thread, and clasp style (deployante, standard buckle, or alternative solutions).

The lifespan of a leather strap depends on the quality of craftsmanship, type of tanning, and daily use. An alligator or shell cordovan strap can last 3–5 years with regular maintenance; vegetable-tanned calfskin typically 2–3 years; rubber straps up to 5–7 years. Storing the watch away from extreme humidity and gently cleaning the strap monthly with a slightly damp cloth significantly extends its useful life. Casati Milano guarantees 18 months on its handcrafted straps.