Longines · DolceVita

Strap for DolceVita 20 Quartz Gold

Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width15 mm
Case diameter20 mm
ReferenceL5.155.6.16.6 (aka: L51556166)
FamilyDolceVita
MovementLongines caliber L178 hours, minutes, small seconds
CaseYellow Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Frequently asked questions

What is the exact lug width of the Longines DolceVita L5.155.6.16.6?

The lug width of the Longines DolceVita L5.155.6.16.6 is 15mm, a non-standard dimension that characterises this specific collection. This width is engineered to maintain visual balance between the 19.80mm rectangular case and the strap, avoiding proportional imbalance. To verify compatibility, measure the internal space between the lugs using a digital calliper: tolerances of ±0.5mm remain compatible without forcing.

Which strap material is most suitable for the Longines DolceVita in yellow gold?

For the yellow gold DolceVita, three primary materials are recommended: alligator in warm tones (cognac, tobacco, honey brown) maintains aesthetic coherence with the gold's luminosity; vegetable-tanned calf offers versatility and a patina that evolves in parallel with the gold; shell cordovan is the connoisseur's choice, developing natural brilliance without treatments and creating a sophisticated texture contrast. Avoid black plasticised or synthetic rubber straps: the DolceVita demands material authenticity.

How do you change the strap on a Longines DolceVita L5.155.6.16.6?

Strap replacement is accomplished via spring bars (small spring-loaded pins) housed in the spaces between the lugs and lugs. Use a dedicated tool (spring bar tool) to gently compress the bars and extract them from their seats. Insert the new lugs into the aftermarket strap, reinsert the spring bars into their seats (ensuring they click correctly), and verify that the strap is symmetrical and properly positioned before wearing. Avoid forcing: correct execution requires no excessive pressure.

Are there aftermarket straps compatible with the 15mm lug width?

Yes. Milano Straps offers a curated selection of straps in alligator, calf, shell cordovan and fabric specifically calibrated for the 15mm lug width. All straps are customisable in total length (short, standard, long), choice of stitching thread and, upon request, embroidered initials. Casati Milano atelier furthermore offers bespoke straps with personal consultation on leathers and finishes, ensuring total aesthetic coherence with your yellow gold specimen.

What is the average lifespan of a leather strap on a daily-wear watch?

A premium leather strap (alligator, calf, shell cordovan) under daily wear resists for an average of 3–5 years before requiring replacement, depending on intensity of use, moisture exposure and tanning quality. Alligator tends to last longer owing to leather density; shell cordovan, whilst exceptionally durable, may develop creasing if not maintained in controlled environments. Regular maintenance (occasional cleaning, protection from extreme humidity) significantly extends strap life. Casati Milano straps include an 18-month warranty on manufacturing defects.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only