Strap for Hydroconquest Quartz 29.5 Silver

The lug width of the Longines HydroConquest L3.247.4.76.6 is 20mm. This measurement represents the exact distance between the two lugs (case protrusions) where the strap attaches. Any replacement strap must conform precisely to this dimension to ensure a secure and ergonomic fit on the wrist.

Strap selection depends on the intended use. For formal or semi-formal contexts, a natural alligator strap with vegetable tanning or shell cordovan offers authority and a patina that develops over time. For versatile daily wear, a superior quality calf leather represents the ideal compromise between aesthetics and practicality. If the watch will be used frequently in water, a vulcanised rubber strap or nylon NATO guarantees moisture resistance and maintenance-free durability without compromising security.

Strap replacement is performed using the spring bars located within the lugs. Using a dedicated spring bar removal tool, apply light pressure to one end of the bar to release it from its seat. Once the bar is free, the old strap detaches easily. To install the new strap, insert the spring bar through the new strap's holes and position it in the lug seats until it clicks into place. It is advisable to perform this operation on a soft surface to avoid scratching the case.

Yes, since the 20mm lug width is an industry standard with extensive market availability. Numerous options of artisanal, industrial, leather, rubber and textile straps are available commercially. For your model, online retailers offer 20mm straps ready for dispatch, customizable in length, initials and stitching thread colour. Alternatively, specialist ateliers such as Casati Milano create bespoke straps with personal selection of leathers and artisanal finishing.

The lifespan of a leather strap depends on tanning quality, leather type (alligator, calf, shell cordovan) and usage conditions. A superior quality strap, subjected to periodic maintenance (light cleaning and occasional application of mink oil or balm), can remain in excellent condition for 3–5 years. Natural alligator with vegetable tanning tends to last longer and develops a fascinating patina. Leather requires protection from excessive moisture and direct heat sources. For frequent water use, alternating the leather strap with a rubber or NATO option is advisable to extend its lifespan.