Longines HydroConquest Automatic reference L3.671.4, the silver-dial version with a stainless-steel unidirectional bezel featuring a raised 60-minute scale. The stainless-steel case measures 39.5 mm excluding the crown (45.3 mm including crown), with screw-down crown, crown guards and screw-down caseback. The watch is powered by the Longines L633.5 automatic calibre, based on the ETA 2824-2. - Movement: Automatic, Longines L633.5 (ETA 2824-2 base) - Case: Stainless steel, 39.5 mm excluding crown - Crystal: Sapphire - Bezel: Unidirectional rotating steel bezel, raised 60-minute scale, luminous pip - Dial: Silver sunray dial with a warm tone depending on light, applied Arabic numerals at 12, 9 and 6, luminous markers - Functions: Hours, minutes, central seconds, date at 3 o'clock - Crown: Screw-down, signed - Bracelet: Stainless-steel bracelet with signed Longines folding clasp with safety lock. Bracelet length 15 cm excluding the case, fitting a wrist of approximately 20 cm - Water resistance: Rated 300 m / 30 bar when new; current water resistance has not been pressure-tested - Period: 2010s The case, lugs and bezel show surface scratches and light marks consistent with normal use, most visible on the lug tops and case flanks. The bracelet and clasp show visible scratches from wear. The dial presents cleanly. The watch is functioning correctly. Service history unknown. Watch only. No box or papers. Shipped fully insured, tracked, and signature-required worldwide. #collectorsweek_watches