Longines · DolceVita
Strap for DolceVita 20 Quartz Gold Diamond
Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The DolceVita L5.155.7.16.0 (aka: L51557160), seen from the bench
Frequently asked questions
What is the lug width of the Longines DolceVita L5.155.7.16.0?
The lug width of the Longines DolceVita L5.155.7.16.0 is 15 mm. This is a non-standard measurement, deliberately narrow to preserve the harmonious proportions of the rectangular case. To verify the measurement, place a ruler between the two lugs (the pins protruding from the case at 12 and 6 o'clock): the external distance must correspond to exactly 15 mm. This specificity requires a conscious search for dedicated straps or bespoke solutions.
Which strap is most suitable for the Longines DolceVita L5.155.7.16.0?
The most suitable strap depends on intended use: for formal and evening occasions, black or dark brown alligator enhances the sophistication of the yellow gold case; for elegant everyday wear, vegetable-tanned calf with a patina that ages beautifully in cognac or slate grey tones guarantees natural development; for maximum versatility, shell cordovan in brown imparts that characteristic soft sheen of the finest sartorial tradition. Avoid overly saturated hues or sporty materials (NATO, rubber) that would contrast with the watch's formal character.
How do I change the strap on my Longines DolceVita?
Changing the strap on the DolceVita L5.155.7.16.0 requires extracting the spring bars that secure the strap to the lugs. Obtain a dedicated spring bar tool and position it over the pin, exerting gentle upward pressure to release the internal spring. Once the pins are extracted, the old strap detaches easily. Then align the new strap's holes and reinsert the pins until you feel the characteristic click of the locking mechanism. Avoid forcing to prevent damage to the yellow gold lugs.
Can I use an aftermarket strap on this model?
Yes, it is possible to use aftermarket straps on the Longines DolceVita L5.155.7.16.0 provided they respect the 15 mm lug width. Generic straps in standard sizes (18, 20 mm) will not fit correctly. Milano Straps offers a dedicated collection of compatible 15 mm straps in various materials (alligator, calf, vegetable-tanned leather, shell cordovan), handcrafted and customizable in length, initials, and stitching thread.
How long does a natural leather strap last on this watch?
The lifespan of a natural leather strap depends on usage, maintenance, and material quality. A high-quality alligator or shell cordovan strap worn daily lasts on average 3–5 years; with sporadic use and regular maintenance (quick drying if exposed to moisture, annual conditioning), it can reach 7–10 years. Vegetable-tanned leather ages magnificently, developing patina and warm hues over time. The spring bar attachment does not wear the strap itself, but regular cleaning of the lug and alternating with other straps prolongs overall longevity.
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
