Strap for Spirit Zulu Time 42 Blue / Bracelet

The lug width of the Longines Spirit L3.812.4.93.6 is 22mm. This dimension is the standard for the model and represents the distance between the internal lug bars where the strap attaches. To verify the measurement on your watch case, measure the width between the two internal edges of the lug bars with a calibrated ruler.

For the Spirit, we recommend straps in alligator with vegetable tanning (cognac or dark brown), which dialogue beautifully with the satiniert stainless steel case. Alternatively, French Barenia calf or nato in more informal contexts. Avoid straps thicker than 3-4mm that would create incorrect proportions on the wrist.

The strap is removed by extracting the spring bars connecting the strap to the lug bars. Use a spring bar tool to gently lift the small internal lever of the spring bar, then withdraw the old strap. Insert the new strap by aligning the holes with the spring bars and press until you hear a click. If unsure, consult a professional watchmaker.

Absolutely. Any strap with a 22mm lug width is compatible with the Spirit L3.812.4.93.6. Milanostraps offers a wide selection of ready-to-ship 22mm straps, customisable in lengths, initials and thread colour. You can also request a bespoke creation through the Casati Milano atelier.

A high-quality leather strap (alligator or vegetable-tanned calf) typically lasts 3-5 years with moderate use, developing authentic patina over time. With genuine vegetable tanning, the leather becomes softer and more characterful as the years pass. The guarantee provided by Casati Milano is 18 months from receipt.