Dual Color Rubber Band for Longines Conquest, HydroConquest L3.781/L3.741/L3.782 – 21mm

A single-colour strap is a background element. A dual-colour band is a decision. The Longines Conquest / HydroConquest Dual Color Silicone Rubber Band takes the sport credentials of the Conquest and HydroConquest family and gives them a visual dimension that the original bracelet was never designed to provide. Two colours, one strap, cut to an exact 21mm fit for the L3.781, L3.741, and L3.782 — for the owner who wants the watch to reflect a point of view as well as a time of day.

One Strap. Two Colours. A Completely Different Watch.

• Silicone rubber construction built for sport — the material does what sport watch straps need to do without being asked: it resists water, chlorine, sunscreen, and perspiration without absorbing any of them, maintains its profile and colour integrity under UV exposure, and stays flexible across the full temperature range a Conquest or HydroConquest is likely to encounter. The dual-colour design adds personality; the silicone construction backs it with substance.
• Exact 21mm lug fit for the L3.781, L3.741, and L3.782 — three references, one precise lug dimension, zero adaptation required. The band seats flush against the case at the full 21mm footprint, with the dual-colour design beginning at the case edge and running consistently to the buckle — no misalignment, no colour break where the strap meets the lug.
• Symmetrical 90mm + 90mm length — equal sections on both sides of the buckle ensure the watch sits centred and balanced on the wrist regardless of size. On a dual-colour band where visual symmetry matters, the equal-length construction is not just a comfort detail — it is an aesthetic one.
• 19mm folding buckle — proportioned for the strap, engineered for daily use — sized at 19mm to sit correctly against a 21mm band width, the folding buckle opens single-handed, lies flat under a cuff, and distributes closure pressure more evenly across the strap than a pin buckle — extending the life of the band at its most-stressed point.
• Dual-colour design for a modern aesthetic — the two-tone construction is not a surface print or an overlay; it is built into the strap itself, giving the colour contrast depth and longevity that a treated or dyed surface finish cannot match. The result is a band that looks as considered on year two as it does on day one.

For the Conquest Owner Who Wants More from the Wrist.

The Longines Conquest and HydroConquest are watches that take sport seriously without taking themselves too seriously. The dual-colour rubber band speaks to exactly that balance — it brings a modern, design-conscious energy to references that have always been about capable understatement, without crossing into territory that overwhelms the dial.

This band suits:

• Style-driven sport watch wearers who rotate straps by outfit or occasion and want a band that makes a considered visual statement rather than simply filling the lug gap.
• HydroConquest owners who want a strap that performs in water without sacrificing the visual interest that a single-colour rubber band can’t provide.
• Younger collectors and first-time strap buyers for whom the dual-colour design offers an accessible, modern entry point into the strap customisation space without requiring a significant investment.
• Conquest owners already wearing the steel bracelet daily who want a second configuration that reads completely differently — casual, contemporary, and immediately distinct from the original.

Specifications

Two colours. One exact fit. A completely different take on your Conquest — add to cart and make it yours.