Longines · DolceVita

Strap for DolceVita 20 Quartz Stainless Steel Diamond Blue

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
ReferenceL5.155.0.92.6 (aka: L51550926)
FamilyDolceVita
MovementLongines caliber L178 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The DolceVita L5.155.0.92.6 (aka: L51550926), seen from the bench

The Longines DolceVita L5.155.0.92.6 is a rectangular dress watch featuring a stainless steel case measuring 19.80 mm with a 15 mm lug width. Powered by the Longines L178 caliber movement, it combines Swiss mechanical precision with Art Déco-inspired proportions. The slim case profile and vertical silhouette offer understated elegance suitable for formal and daily wear.

Frequently asked questions

What is the lug width of the Longines DolceVita L5.155.0.92.6?

The lug width (misura ansa) of the Longines DolceVita L5.155.0.92.6 measures 15 millimetres. This non-standard dimension requires straps specifically crafted for this width, as commercial standards (16, 18, 20 mm) will not seat correctly. To measure the lug width accurately, use a digital calliper perpendicular to the case between the two lugs at the narrowest point of the strap bar.

Which strap material is best suited to the DolceVita L5.155.0.92.6?

We recommend alligator leather for its geometric texture, which complements the Art Déco aesthetic of the model perfectly. Alternatively, vegetable-tanned calf offers natural ageing and evolving patina over time. Shell cordovan represents an equilibrium between formal elegance and exceptional durability, whilst NATO straps in leather provide daily versatility whilst maintaining understated aesthetics. Rubber is appropriate for sports contexts without compromising the minimalist character of the timepiece.

How do you change the strap on a Longines DolceVita L5.155.0.92.6?

Changing the DolceVita's strap requires a spring bar tool (a specialised instrument for removing the lug bars). Insert the slender tip into the opening of one lug, lift gently to release the spring bar, then extract the strap. Repeat on the opposite side. Position the new 15mm strap into the same lugs and carefully reseat the spring bars, ensuring they are fully engaged. If you lack experience, contact Casati Milano for professional strap change service.

Does the DolceVita L5.155.0.92.6 accept compatible aftermarket straps?

Yes, the Longines DolceVita L5.155.0.92.6 is compatible with quality aftermarket straps constructed specifically for 15mm lug width. Milano Straps offers a selection of artisanal straps compatible with this model, crafted in alligator, vegetable-tanned calf, shell cordovan and other materials, all customisable in length, initials and stitching thread. Always verify that your chosen strap has been manufactured for 15mm lug width to prevent incompatibility issues.

How long does a leather strap last on a Longines DolceVita?

Longevity depends on material and usage patterns. An alligator or shell cordovan strap with regular maintenance can serve 5–7 years or longer before replacement becomes necessary. Vegetable-tanned calf retains functionality for 3–5 years whilst developing a captivating patina throughout. A leather strap worn daily benefits from preventive care: apply protective balm every 6–8 months and dry promptly after moisture exposure. Rubber straps offer greater longevity (8–10 years) but suffer from prolonged exposure to direct UV radiation.

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