Longines · Master Collection
Strap for Master Collection 34 Moonphase Stainless Steel - Pink Gold / MOP / Bracelet
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Master Collection L2.409.5.89.7, seen from the bench
Frequently asked questions
What is the lug width of the Longines Master Collection L2.409.5.89.7?
The lug width is 18mm. This measurement is determined by the distance between the case lugs at 34mm diameter. A strap measuring 18mm will fit perfectly into this space without play or friction. Precise measurement is essential in watchmaking: no flexibility is permitted.
Which strap is most suitable for the Longines Master Collection L2.409.5.89.7?
We recommend alligator leather in cognac or medium brown tones, or high-quality European calf with fine grain texture. Black polished alligator is the classic choice that enhances the mother-of-pearl and rose gold. Calf leather ages beautifully over time, developing natural patina. We advise against rubber or excessively sporty straps, which would clash with the case's refinement.
How do you change the strap on a Longines Master Collection L2.409.5.89.7?
Use a spring bar tool or small flat screwdriver. Position the watch on a stable surface, locate the spring bar connecting the strap to the case, gently push towards the centre of the case to release it, remove the old strap and insert the new one. Simple operation, but requiring precision to avoid damaging the case.
Can I use an aftermarket 18mm strap on this Longines?
Yes, fully compatible. Artisanal straps in alligator, calf and vegetable tanned leather measuring 18mm work perfectly. Ensure the strap is specifically dimensioned to 18mm and that the chosen buckle or deployante clasp is proportioned to the 34mm case. Premium manufacturers guarantee dimensional and constructive precision.
What is the average lifespan of a leather strap for the Longines Master Collection L2.409.5.89.7?
A quality alligator strap typically lasts 3-5 years with daily use. European calf with vegetable tanning can last 4-6 years or longer, developing patina that makes it even more valuable. Longevity depends on usage, climate and maintenance. A strap with an 18-month warranty provides reassurance about initial construction quality.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
