Jaeger-LeCoultre
Master Ultra Thin 128258S— lug 20mm

The Jaeger-LeCoultre Master Ultra Thin 128258S features a 20mm lug width. This measurement should be taken with a digital caliper or millimeter ruler positioned between the two lugs of the case, in the contact area with the strap. All 20mm straps compatible on milanostraps.it fit perfectly to this model.

For the Master Ultra Thin 128258S in stainless steel, an alligator strap with belly grain or square pattern represents the most coherent choice with the haute horlogerie positioning of the model. Alternatively, smooth calf leather in tobacco brown or navy blue guarantees a sartorial aesthetic and natural patina over time. For casual contexts, dense nylon NATO is a functional and versatile choice.

The strap of the Master Ultra Thin 128258S is secured with standard 20mm spring bar connectors. For replacement, a lever or fine-point strap removal tool is sufficient: insert the point into the lateral seat of the spring bar, compress it inward and remove the strap. The operation takes about two minutes and does not require specialized tools. In case of doubt, Casati Milano offers strap replacement service by appointment.

Yes. Any 20mm strap with standard spring bar connectors is compatible with the Jaeger-LeCoultre Master Ultra Thin 128258S. On milanostraps.it you will find a selection of artisanal straps in leather, alligator, NATO and rubber specifically indexed for 20mm lug width, made with materials and finishes consistent with haute horlogerie standards.

The lifespan of a leather strap depends on leather quality, frequency of use and exposure to sweat and humidity. A quality calf strap, with regular use and proper care, lasts an average of 18-24 months. A top-tier tannery alligator can exceed 3 years while maintaining intact structure. Casati Milano straps include an 18-month warranty on manufacturing defects and benefit from leathers selected from the best European tanneries.