Strap for PrimaLuna Quartz 23 Two Tone Pink Diamond

The lug width of the Longines PrimaLuna L8.109.5.79.6 is precisely 6 millimetres. This specific lug width measurement determines which strap is compatible with the watch. You can verify this by measuring the distance between the two lugs (the small metal bars) that protrude from the case. A 20mm, 22mm, or 24mm strap will not fit correctly.

For the PrimaLuna, we recommend alligator straps with fine grain to emphasise the aesthetic minimalism (neutral colours such as off-white or grey), or vegetable-tanned calf leather in cognac or medium brown tones that create contrast with the steel case. For versatility, a natural silk NATO strap in neutral tones offers practicality whilst maintaining sophistication. Quality rubber is ideal for those seeking a robust and practical strap.

Strap replacement is accomplished by removing the spring bars. The metal bars that connect the strap to the case must be gently extracted using a specialised tool (spring bar tool). Position the new strap, insert the bars through the case lugs and strap ends, then verify that tension is correct. If uncertain, consult a specialist jeweller to avoid damaging the case.

Yes, you can use an aftermarket strap provided it has been constructed with the correct 6 millimetre lug width. Artisanal leather, elastomer, or textile straps produced by specialised manufacturers often offer superior quality compared to original replacements. Always verify that the lugs are made from stainless steel to prevent deterioration or oxidation.

A quality leather strap, subjected to regular wear, has an average lifespan of 3-5 years before showing visible signs of wear (cracking, fibre weakening). Longevity depends on environmental humidity, frequency of wear, solar exposure, and the type of tanning used. Vegetable tanning tends to age better than chrome tanning, developing a characteristic patina. Regular maintenance (gentle cleaning and annual conditioning) significantly extends the strap's useful life.