Technical Archive

Jaeger-LeCoultre
Master 1562401 (aka: Q1562401)— lug 20mm

Jaeger-LeCoultre Master 1562401 (aka: Q1562401): 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Master Tourbillon Pink Gold / Diamond / Silver / Alligator

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Jaeger-LeCoultre 1562401 (aka: Q1562401)
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

1562401 (aka: Q1562401)

Movement

Jaeger-LeCoultre caliber 978B Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable) | Date | Tourbillon Escapement

The Heritage

The Master features the Jaeger-LeCoultre 978B caliber with tourbillon escapement and adjustable 24-hour hand. The movement provides indication of hours, minutes, seconds and date. The Q1562401 reference presents this technical complication in the classic configuration of the Master collection.

FAQ

What is the lug width of the Jaeger-LeCoultre Master 1562401 (Q1562401)?

The Jaeger-LeCoultre Master 1562401, also known as Q1562401, is equipped with a 20mm lug width. This measurement is taken with a digital caliper positioned between the two lugs of the case, at the attachment point between case and strap. All standard 20mm straps are compatible, verifying the curvature of the end if necessary.

What is the best strap for the Jaeger-LeCoultre Master Tourbillon 1562401?

For a rose gold case with tourbillon, the most suitable strap is hand-worked alligator porosus or hornback leather, with saddle stitching and 18kt rose gold deployant buckle. Alligator leather in tobacco brown, burgundy or midnight blue enhances the warm tone of rose gold while maintaining formal coherence with the piece's level.

How do you change the strap on the Jaeger-LeCoultre Master 1562401?

The strap of the Jaeger-LeCoultre Master 1562401 is attached to the lugs via standard 20mm spring bars. To remove it, simply use a spring bar tool, inserting it into the lateral hole of the bar to compress the spring and slide off the strap. The operation requires care to avoid scratching the rose gold case: if you do not have the proper tool, it is preferable to entrust it to a watchmaker or to the Casati Milano atelier.

Are there aftermarket straps compatible with the Jaeger-LeCoultre Master Q1562401?

Yes, the Jaeger-LeCoultre Master Q1562401 accepts any 20mm aftermarket strap with standard spring bars. Milano Straps offers a selection of artisanal compatible straps in various materials — alligator, calf box-calf, nylon NATO, rubber — with the possibility of customizing buckle, stitching and color. For maximum fitting precision, the Casati Milano atelier creates bespoke straps by measuring the exact geometry of the lug.

How long does a leather strap last on a Jaeger-LeCoultre Master 1562401?

The lifespan of a leather strap depends on the quality of tanning, daily care and intensity of use. A high-quality alligator strap, periodically treated with specific creams and kept away from excess moisture and sweat, maintains structural and aesthetic integrity for 3-5 years of regular use. Straps produced by Casati Milano benefit from an 18-month warranty on manufacturing defects and are made with premium-grade leathers to maximize longevity.

The next step

The right strap isn’t chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

By appointment only · Milan

The atelier's website: casatimilano.com