Jaeger-LeCoultre
Duomètre 6052420— lug 20mm

The Jaeger-LeCoultre Duomètre 6052420 is fitted with 20 mm lugs. This measurement should be taken internally between the two lugs at the caseback attachment point, using a millimeter caliper for accurate reading. All 20 mm straps from the Milano Straps catalog are compatible with this reference.

For the rose gold case of the Duomètre 6052420, a polished alligator strap in cognac or tobacco represents the most coherent choice: the large-scale grain complements the polished surfaces of the case, and the warm leather tones pair naturally with rose gold. Alternatively, black or burgundy box-calf leather offers formal rigor without sacrificing wrist comfort.

Replacing the strap on the Duomètre 6052420 requires a dedicated spring bar tool or millimeter pusher to remove the spring bars from the rose gold lugs. It is recommended to work on a soft surface to avoid scratching the case, and to have the operation performed by a watchmaker or at the Casati Milano atelier if this is your first replacement, given the precious nature of the case material.

Yes: any strap with a 20 mm attachment and a curved head (cuvette) suited to the case curve is compatible with the Duomètre 6052420. Milano Straps offers a selection of artisanal alligator, calf, and rubber straps specifically evaluated for this type of rose gold case, with buckles also available in rose gold to ensure aesthetic continuity.

The lifespan of a leather strap depends on leather quality, frequency of use, and exposure to sweat and moisture. A high-quality alligator or calf strap, used with care and kept away from heat sources, maintains structural and aesthetic integrity for 2-4 years in regular use. Milano Straps straps are covered by an 18-month warranty against manufacturing defects.