Technical Archive

Jaeger-LeCoultre
Master 1612103 (aka: Q1612103)— lug 20mm

Jaeger-LeCoultre Master 1612103 (aka: Q1612103): 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Master Eight Days Perpetual Pink Gold Diamond / Bracelet

Artisanal Note

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

Technical Specifications

Jaeger-LeCoultre 1612103 (aka: Q1612103)
Lug Width
20 mm

The essential strap measurement.

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Reference

1612103 (aka: Q1612103)

Movement

Jaeger-LeCoultre caliber 876-440B Hours, Minutes, Seconds | Date, Day, Month, Year Indicator, Perpetual Calendar | Moonphase | Power Reserve Indicator

The Heritage

The Jaeger-LeCoultre Master features the in-house caliber 876-440B with full perpetual calendar functions including date, day, month and year indicators. The watch also integrates moon phases and a power reserve indicator. The movement manages hours, minutes, central seconds as well as the perpetual calendar complications.

FAQ

What is the lug width of the Jaeger-LeCoultre Master 1612103 (Q1612103)?

The lug width of the Jaeger-LeCoultre Master 1612103, also known as Q1612103, is 20mm. This measurement should be taken between the two lugs with a millimeter caliper at the junction zone with the case, excluding the lateral flanges. The width typically tapers to 18mm at the buckle height on straps with standard tapering.

What is the best strap for the Jaeger-LeCoultre Master 1612103 in rose gold?

For the 1612103 reference in rose gold, a mississippiensis alligator or hornback strap represents the most coherent choice with the formal register of the perpetual calendar. Cognac, bordeaux, and midnight blue colors dialogue with the warm tone of the metal. Polished box-calf is the path of maximum discretion for evening occasions. All compatible 20mm models are available from Milano Straps.

How do you change the strap on the Jaeger-LeCoultre Master 1612103?

The strap on the Jaeger-LeCoultre Master 1612103 is replaced using a fine-pointed spring bar tool or springbar tool, by levering the ends of the spring bars inside the lugs. It is recommended to work on a soft surface to avoid scratches to the rose gold case. If you are not familiar with the operation, it is preferable to contact a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Jaeger-LeCoultre Master Q1612103?

Yes, there are numerous quality aftermarket straps compatible with the Jaeger-LeCoultre Master Q1612103, as the 20mm lug width is a widely diffused standard. Milano Straps offers a selection of handcrafted straps in alligator, calf, and other materials with 20mm width, crafted with finishes and materials worthy of a haute horlogerie timepiece. Consult the collection dedicated to 20mm straps to find the most suitable model.

How long does a leather strap last on a Jaeger-LeCoultre Master 1612103?

The lifespan of a leather strap depends on the material, daily use, and care. A quality alligator strap, with regular use and rotation with other straps, can last 3 to 5 years while maintaining optimal appearance. Calf tends to develop a characteristic patina over time, although it is more sensitive to moisture. Storing the strap away from direct heat sources and occasionally applying a neutral balm for fine leathers significantly extends the life of the material.

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.

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The atelier's website: casatimilano.com