Jaeger-LeCoultre
Master Control 1548470 (aka: Q1548470)— lug 20mm

The lug width of the Jaeger-LeCoultre Master Control 1548470 (Q1548470) is 20mm, measured internally between the two lugs at the attachment point to the case. This is the measurement to indicate when purchasing any compatible replacement strap.

For the Master Control 1548470 (Q1548470) in steel, the most successful choices are smooth alligator in midnight blue or black for formal occasions, grain calf for daily use with patina development, and nylon NATO for casual or summer contexts. The 39mm case pairs well with straps featuring a refined profile and matching stitching.

The Master Control Q1548470 strap is replaced using a dedicated springbar tool (forked screwdriver) to release the spring bars from the case lugs. The operation takes approximately two minutes and can be performed independently with the right tools, or entrusted to a watchmaker or the Casati Milano atelier for an impeccable result.

Yes, any strap with a 20mm lug width and curved ends is compatible with the Master Control 1548470 (Q1548470). Milano Straps offers a selection of artisanal 20mm straps custom-made by Casati Milano, available in various materials and finishes, with an 18-month warranty against manufacturing defects.

The lifespan of a leather strap depends on the material and use: a quality alligator strap, regularly maintained with specific products and not exposed to water, can exceed 3-5 years while maintaining structural and aesthetic integrity. Calf leather tends to develop patina more quickly but has an average lifespan of 1-3 years with daily use. Casati Milano guarantees 18 months against manufacturing defects for all artisanal straps.