L3.642.4.56.6
Case: Round, in stainless steel with scratch-resistant sapphire crystal, with a single layer of anti-reflective coating on the underside; black aluminium bezel; screw-down case-back and screw-in crown. Diameter: 41 mm. Water-resistant to 300 metres (~ 1000 feet).
Movement: L633 self-winding mechanical movement beating at 28,800 vibrations per hour and providing 38 hours of power reserve.
Functions: Hours, minutes, date at 3 o'clock.
Dial: Black "sunray". Big "12" at 12 o'clock, luminescent "6" and "9" Arabic numerals and 9 Superluminova luminescent dots. Silvered hands with Superluminova luminescent material.
Bracelet: Stainless steel bracelet with double security folding clasp and integrated diving extension.
Longines Sport Collection - HydroConquest
HydroConquest: profoundly sporty
Diving watches “par excellence”, the models in the HydroConquest series are a homage to the men who have dedicated themselves to conquering the oceans and to enthusiasts of the open seas. They meet the strict requirements demanded by this discipline: they are water-resistant to 300 m, are fitted with a unidirectional turning bezel, screw-down case and screw-in crown, lateral protection for the crown and double security folding clasp with integrated diving extension-piece. These rigorous guarantees of uncompromising safety fit in perfectly with the harmony of this silent world. Performance and elegance, a unique Longines combination.
