Jaeger-LeCoultre
Master Ultra Thin 1152520— lug 18mm

The Jaeger-LeCoultre Master Ultra Thin reference 1152520 features a strap with an 18mm lug width. This measurement is taken between the two lugs of the case using a digital caliper or millimeter ruler. The opposite end of the strap, the one that inserts into the buckle, is generally tapered to 16mm to maintain elegant proportions.

For a rose gold case like the Master Ultra Thin 1152520, a polished alligator strap in cognac, burgundy, or navy blue tones is the most coherent choice with the haute horlogerie aesthetic of the model. Tobacco brown box calf represents a versatile alternative for more contemporary daily wear. Milano Straps offers both options in ready-made format or custom-made through the Casati Milano atelier.

The strap on the Master Ultra Thin 1152520 is replaced using standard 18mm spring bars positioned in the case lugs. Simply use a dedicated spring bar tool or a lever tool with a rounded tip to avoid scratching the rose gold case. The operation takes just a few minutes and can be performed independently with the correct tools, or entrusted to the Casati Milano atelier when ordering the strap.

Yes, the Jaeger-LeCoultre Master Ultra Thin 1152520 uses standard 18mm spring bars, making it compatible with the vast majority of quality aftermarket straps available on the market. Milano Straps offers a selection of 18mm straps in leather, alligator, calf, and NATO handcrafted, or you can order a completely custom strap through the Casati Milano atelier with leather selection and stitch customization.

The lifespan of a leather strap depends on the quality of the leather, daily care, and frequency of use. A high-quality alligator or calf strap, kept away from excessive moisture and treated periodically with specific products, can last between 2 and 5 years while maintaining a flawless appearance. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.