Longines · DolceVita

Strap for DolceVita 20 Quartz Two Tone Diamond

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
ReferenceL5.155.5.09.7 (aka: L51555097)
FamilyDolceVita
MovementLongines caliber L178 hours, minutes, small seconds
CaseMother of Pearl | Yellow Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

The DolceVita L5.155.5.09.7 (aka: L51555097), seen from the bench

The Longines DolceVita L5.155.5.09.7 is a women's rectangular watch launched in 1997, featuring yellow 18K gold combined with white mother-of-pearl dial for an iridescent effect. It houses the Longines L178 automatic movement with hours, minutes, and small seconds at 6 o'clock. The case measures 19.80 mm in diameter with a 15 mm lug width, characteristic of the DolceVita feminine collection.

Frequently asked questions

What is the exact lug width of the Longines DolceVita L5.155.5.09.7?

The lug width of the Longines DolceVita L5.155.5.09.7 is precisely 15 millimetres. This is the width of the space between the lugs where the strap attaches. It is crucial to verify that any aftermarket strap is constructed exactly to this measurement to ensure perfect compatibility. Incorrect measurement is the most common cause of incompatible purchases.

What is the best strap for the Longines DolceVita L5.155.5.09.7?

The best strap for this model is alligator leather (Nile crocodile) in natural tones (cognac, tan) or richer hues (chocolate brown, burgundy). Alligator dialogues beautifully with the iridescence of the mother of pearl dial and the yellow gold case. Noble alternative: smooth calf leather in polished black for graphic contrast, or cream white for chromatic harmony. Vegetable tanning is strongly recommended to ensure a natural patina that matures over time.

How do I change the strap on the Longines DolceVita L5.155.5.09.7?

Strap replacement is performed using the spring bars (small elastic pins) at the ends of the lugs. Use a spring bar tool to gently push the pins inward and slide the old strap out of its seat. Align the holes of the new strap with the lugs and snap the pins into position. We recommend having this operation performed by a professional to avoid damaging the delicate case pins.

Are aftermarket straps compatible with the Longines DolceVita L5.155.5.09.7?

Yes, any aftermarket strap constructed precisely to 15mm lug width is fully compatible with the L5.155.5.09.7. Many specialist manufacturers, such as Milano Straps, offer certified straps for this measurement in various materials and finishes. Always verify that the strap is constructed at 15mm and not at adjacent sizes (14mm or 16mm).

How long does a leather strap last on the Longines DolceVita L5.155.5.09.7?

A quality leather strap (alligator or calf in vegetable tanning) has an average lifespan of 5-7 years with daily use, provided regular maintenance is observed: avoid stagnant water, protect from excessive perspiration, allow natural air-drying after humidity exposure. Longevity increases if the strap is used in alternation with others. Milano Straps guarantees 18 months on bespoke straps made in the atelier.

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