Strap for Spirit Flyback 42 Stainless Steel - Yellow Gold / Green

The lug width of the Longines Spirit L3.821.5.53.2 is 22mm. This measurement refers to the distance between the spring bar pins, measured centre to centre. To verify, place a ruler between the two pins on both sides of the case. Any strap with a 22mm lug width will be fully compatible with this model without modification.

Selection depends on intended usage. For formal contexts, polished black or dark brown alligator is recommended: its regular texture does not compete with the dial. For daily wear with character, vegetable-tanned calf develops natural patina over time. For water exposure, vulcanised rubber or Cordura offer superior resistance. Shell cordovan represents the ideal compromise between durability and refined aesthetics, with excellent water resistance and unique ageing properties.

Changing requires few tools: a scratch-proof mat, a small knife (or dedicated spring bar tool) and the new 22mm strap. Position the watch on the mat and apply the knife on the spring bar to compress it: one pin will release from its seat. Remove the old strap completely, then insert the new strap's pins into both seats, ensuring the spring bar clicks into position. Repeat on the opposite side. Some prefer professional assistance to avoid case scratches.

Yes, any strap with 22mm lug width is compatible. Artisanal aftermarket straps often offer superior quality compared to factory solutions, featuring certified leathers, hand-stitching and customisable finishes. Ensure the strap is mounted on stainless steel lugs and that the spring bar is the correct size to prevent excessive play.

Durability depends on leather quality, daily usage and maintenance. A calf strap with vegetable tanning typically lasts 3-5 years of regular wear. Alligator, being more resistant, reaches 5-7 years. Shell cordovan, thanks to its natural vitrification, can last 7-10 years. Leather dislikes prolonged sweat and repeated immersion: expose the strap to air after wear and clean gently with a damp cloth. Avoid aggressive chemical products.