Strap for Reverso Classic Medium Duetto Stainless Steel / Silver / Bracelet

The lug width of the Jaeger-LeCoultre Reverso 2578120 is precisely 18 millimetres. This characteristic measurement is specific to the lady's version of the Reverso collection and is essential when selecting a replacement strap: any new strap must measure exactly 18mm in width to fit correctly into the case lugs. To verify this measurement, use a calliper positioned between the case shoulders at the strap attachment point.

The Reverso 2578120 benefits from strap materials that respect its vertical proportions. Alligator leather remains the classical choice: its fine grain and controlled lustre create perfect visual harmony with the squared geometry. Vegetable-tanned calf offers a refined alternative, developing natural patina over time. Shell cordovan represents the premium option for those who understand this leather's rarity: its oily sheen ages beautifully through regular wear. For daily informal use, canvas NATO and butyl rubber remain functionally legitimate choices that do not compromise the watch's character.

Changing the Reverso 2578120 strap requires a spring bar tool or fine flathead screwdriver. Position the watch on a clean, stable surface. Insert the tool under the spring bar securing the old strap to the case lug, applying controlled pressure to release the bar. Repeat on the opposite side until the old strap detaches completely. To install the new 18mm strap, align the holes with the spring bars and press gently until you feel the securing click. Verify the strap is firmly attached by applying light opposing tension on both sides.

Yes, the Reverso 2578120 is fully compatible with high-quality aftermarket straps, provided they respect the 18-millimetre lug width specification. Many artisanal manufacturers create bespoke straps specifically for this reference, permitting aesthetic personalisation without compromise. Compatibility depends solely on strap width: any 18mm strap in alligator, calf, shell cordovan or other premium leathers will fit the case lugs perfectly without requiring modification or adjustment.

Leather strap longevity depends on material quality, wearing frequency and environmental conditions. A high-quality artisanal alligator or shell cordovan strap, worn regularly but not daily, typically lasts between 5 and 10 years before requiring replacement. Vegetable-tanned calf, developing controlled patina, remains serviceable considerably longer: its ageing is integral to its aesthetic philosophy. To maximise durability, avoid prolonged direct moisture exposure, protect against splashing and rotate multiple straps regularly to distribute mechanical stress. An 18-month warranty against manufacturing defects is standard in professional artisanal strap production.