Collection: Crown for Longines HydroConquest Series

Restore the rugged performance of your diver with our Crown for Longines HydroConquest Series, engineered as a high-quality aftermarket replacement for HydroConquest-compatible cases. Crafted from corrosion-resistant stainless steel with precise threading and clean finishing, this crown ensures smooth winding, secure time-setting, and strong durability in aquatic conditions.

Designed as a screw-down crown for proper water-resistance support, it features accurate dimensions for crown tube engagement, stem fitment, and gasket compression—ensuring a reliable, factory-style seal when paired with the correct tube and O-ring.

Perfect for repairing a worn crown or completing a full diver restoration, the Crown for Longines HydroConquest Series offers dependable functionality and refined sport-luxury finishing.