Strap for DolceVita 20 Quartz Stainless Steel

The lug width of the Longines DolceVita L5.155.4.84.2 is precisely 15mm. This measurement is determined by the geometry of the rectangular case with a 19.8mm diameter. To verify it, measure the distance between the inner shoulders of the lug using a digital calliper: you will find 15mm. It is essential to know this precise measurement before purchasing an aftermarket strap, as any error, however minimal, compromises the aesthetics and functionality of the watch.

Alligator represents the most coherent choice from both aesthetic and historical perspectives. The geometric and regular grain of alligator naturally dialogues with the pure rectangular form of the case. Alternatively, vegetable-tanned calf leather with natural texture offers elegant ageing patina over time. For formal evening contexts, shell cordovan in deep burgundy or dark brown amplifies the introverted character of the watch. Avoid straps with excessive texturing or artificial colours, which betray the minimalist essence of the design.

Strap replacement requires the use of a spring bar removal tool, a specific instrument that allows you to gently push the spring bar (internal lug spring) to extract it from the case hole. Position the tool in the small lateral hole of the lug: you will feel the spring yield. Completely remove the old strap, then insert the new spring bars into the eyelets of the new strap and reintroduce them into the case seats until they seat. This work can be performed independently with care or entrusted to a professional watchmaker to avoid scratches. In the case of a custom strap from Casati Milano, you will receive detailed instructions and personalised assistance.

The Longines DolceVita L5.155.4.84.2 is fully compatible with any strap that has an exact 15mm lug width. The constructive reference is the width between the inner shoulders of the lug: 15mm means that the strap must have eyelets precisely 15mm apart. Commercial availability: 15mm straps are less common than standard sizes (18mm, 20mm, 22mm), which is why bespoke customisation from specialist ateliers such as Casati Milano often represents the optimal solution for material variety and construction quality.

The lifespan of a leather strap depends on intensity of use, climate, type of tanning and maintenance. An alligator with vegetable tanning used daily maintains structural functionality for 18-24 months, developing a fascinating patina. Shell cordovan, thanks to fibre density, can resist 24-36 months whilst maintaining superior aesthetic integrity. Calf leather with vegetable tanning, with regular maintenance (light cleaning, drying), extends life to 20-28 months. Factors that reduce durability: prolonged exposure to moisture, abrasive contact with hard materials, absence of maintenance. Casati Milano provides an 18-month guarantee on all bespoke-produced straps.