Strap for Spirit 31 Quartz

The lug width of the Longines Spirit L2.198.4.53.2 is 15 millimetres. This measurement refers to the distance between the two inner shoulders of the case lugs, where the strap sits. It is a non-standard specification within Longines' catalogue, engineered for elegant and slender wrists. To verify, place a ruler across the inner surfaces of the lugs without including any decorative exterior elements.

For this model, straps in African alligator, vegetable-tanned calf leather, natural rubber, or NATO fabric are recommended. African alligator offers sober elegance with regular texture and balanced grain. Vegetable-tanned calf develops natural patina over time. Natural rubber maintains the watch's technical vocation. NATO in quality fibres allows rapid seasonal changes. Artificial glossy leather is discouraged, as it diminishes the contained luxury proposition.

Strap replacement occurs through the case lugs. Position the watch on a support strap or soft cushion. Using a spring bar removal tool (two-pronged fork) or a common multi-tool, insert the tips into the lateral grooves and apply gentle, uniform pressure downward to release an internal retention spring. Once disengaged, the lug releases easily. Insert the new strap by reversing the operation until an audible click is heard.

Yes, any strap manufactured for 15mm lug width is compatible with the Longines Spirit L2.198.4.53.2, provided the strap does not exceed the maximum thickness the case accommodates. The 15mm non-standard size represents a rarity in the market, enabling uncommon bespoke customisations. Milano Straps offers a dedicated collection of straps in this width, crafted in natural leather and technical rubber, customisable in length and hardware.

A superior quality leather strap has an average lifespan of 3-5 years with daily wear, depending on climate, maintenance, and sun exposure. Vegetable tanning tends to last longer than industrial tanning, developing patina rather than degrading. African alligator, due to its skin structure, resists particularly well. Milano Straps guarantees 18 months on all bespoke straps, covering defects in craftsmanship and material.