Longines Ultra-Chron Classic Automatic Silver Dial Stainless Steel Watch 37mm - L25374726

In 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. At the time, Longines had already established itself as a pioneer in high-frequency technology. As early as 1910, the winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy. The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.
This elegant Longines Ultra-Chron Classic automatic watch features a round 37mm stainless steel case and water resistance up to 50 meters (167 feet). This watch is enhanced with a sunray silver dial. The functionality of this timepiece includes hours, minutes, seconds and it comes with a stainless steel bracelet.

• Case Shape - Round
• Case Material - Stainless steel
• Case Dimension - 37 mm
• Glass - Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides
• Lug distance - 19 mm
• Lug-to-lug - 44.6 mm
• Thickness - 10.95 mm
• Water Resistance - Water-resistant to 5 bar
• Dial color - Sunray silver
• Hands - Silvered polished hands
• Hour markers - Applied indexes
• Movement Type - Automatic
• Caliber - L836
• Functions - Hours, minutes, seconds and date
• Movement Description - Self winding mechanical movement beating at 36'000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 52 hours
• Strap Material - Stainless steel
• Buckle - With double security folding clasp with micro adjustment system
• Longines Style # - L2.537.4.72.6