Black Rubber Silicone Watch Strap For Longines Hydroconquest 21mm
21mm Black Silicone Rubber Watch Strap For Longines Hydroconquest. Compatibility: Longines Hydroconquest. Strap Width: 21mm. Material: Silicone Rubber. Requires a 19mm clasp. At the WatchXchange, our love for watches drives everything we do.