Strap for Spirit Automatic 42 Green / Bracelet

The lug width of the Longines Spirit L3.811.4.03.6 is 22mm. This width is measured between the lugs of the case at the attachment point of the strap. Always verify the measurement with a digital caliper before ordering an aftermarket strap to ensure absolute compatibility.

The best strap depends on intended use and aesthetic preference. Given the watch's aviator heritage, we recommend Tuscan vegetable-tanned leather (havana brown or black), which develops natural patina over time, or shell cordovan for greater sophistication. A NATO strap in canvas or ballistic nylon further emphasises the sportive character. Aniline calf leather is the elegant choice for formal occasions.

To change the strap, position the watch on a soft surface (microfibre cloth). Using a spring bar tool, gently press downward to release the spring mechanism from the lug hole. Repeat on the opposite side. Carefully insert the new strap lugs into the holes, ensuring the spring engages securely. Visually verify that the attachment is symmetrical on both sides before wearing the watch.

Yes, all 22mm straps are compatible with the Longines Spirit L3.811.4.03.6. Milano Straps offers handcrafted straps in various materials and colours, from Tuscan leathers to natural alligator, with fast shipping. You can customise the length, add initials, and choose stitching colour. For particular requirements, the Casati Milano atelier creates fully bespoke straps.

A well-made leather strap typically lasts 2-4 years with regular use. Lifespan depends on leather type (Tuscan vegetable-tanned, aniline calf, alligator), frequency of use, and environmental conditions (humidity, sun exposure). A Tuscan vegetable-tanned strap improves aesthetically over time as it develops patina. To maximise longevity, avoid prolonged moisture exposure and occasionally apply leather-specific balms.