Strap for Spirit 36

The lug width of the Longines Spirit L2.699.4.53.6 is 18 mm. This is the distance between the two lugs on the case and is essential for ordering a correctly fitting strap. Do not confuse this with the total width of the spring bar, which is larger.

For the Longines Spirit L2.699.4.53.6, we recommend alligator leather with vegetable tanning (for natural patina development), satin-finished calf leather in dark tones (black, navy, stone grey), or NATO canvas in grey-blue to honour the watch's aviation heritage. Avoid bright colours: the Spirit prefers understated chromatic restraint.

The Longines Spirit uses a standard 18 mm spring bar. Using a spring bar tool or a toothpick, position yourself on the inner side of the case and gently push the bar outward to release it from one side. Repeat on the opposite side. Insert the new strap by aligning the spring bar holes with the lugs, ensuring the bar is fully inserted on both sides. This reversible operation takes approximately 2 minutes.

Yes, any strap fitted with an 18 mm spring bar is compatible with the Longines Spirit L2.699.4.53.6. MilanoStraps offers handcrafted 18 mm straps in alligator leather, calf, shell cordovan, and NATO canvas, all customizable in size, colour, initials, and stitching thread type.

A high-quality leather strap (alligator or full-grain calf) typically lasts 5–7 years with daily wear, provided moderate water exposure and periodic maintenance (cleaning with a soft cloth, avoiding prolonged immersion). Vegetable-tanned leather straps develop natural patina over time, improving aesthetically. A NATO canvas strap resists longer (10–15 years) but is less elegant for formal contexts.