Strap for Spirit Automatic 42 Blue / Strap XL

The lug width of the Longines Spirit L3.811.4.93.3 is 22mm. This measurement is taken between the springbar lugs, from solder point to solder point. All compatible straps must be specifically cut at 22mm to ensure a perfect fit without play or structural stress on the watch case.

It depends on intended use. For formal elegance, we recommend alligator leather with vegetable tanning in dark shades (navy, brown). For instrumental versatility, a NATO strap in regenerated fibres maintains the aeronautical soul of the watch. For aquatic environments, vulcanised rubber with granular texture offers unmatched durability and functionality.

Remove the springbar pins using a dedicated spring bar tool. Position the watch with lugs facing upward, insert the tool beneath the pin whilst compressing the internal spring, then extract the pin. Repeat on the other side and insert the new strap in the same manner, ensuring both pins are fully locked into place.

Yes, absolutely. Any strap in 22mm size is compatible with the Spirit, provided it meets quality standards consistent with the watch's prestige. Milano Straps offers 22mm artisanal straps crafted from certified leathers with hand-stitching, guaranteed for 18 months.

A quality leather strap (alligator with vegetable tanning or selected calf leather) lasts approximately 5–7 years with moderate daily wear. Durability depends on usage intensity, humidity exposure, and proper maintenance. A NATO strap in regenerated fibres lasts 3–4 years while maintaining structural integrity even in extreme conditions. Casati Milano provides an 18-month warranty on all bespoke straps.