Ultra-chron Rolex it offers a 48-hour power

it offers a 48-hour power reserve and displays world time

Designed for scientific environments with 10 ATM water resistance

is a refined aviation-inspired timepiece that embodies precision

The silver dial is adorned with blue steel hands

this watch ensures reliable timekeeping

Ultra-chron Rolex it offers a 48-hour powerLongines Ultra Chron Steel Precision The Longines Ultra Chron (Ref. L2. 836. 4. 52. 6) is a men's watch featuring a 43mm stainless steel case and a sleek black dial. This pre owned timepiece, in very good condition, showcases a high precision automatic movement, the Longines caliber L836, offering a 52 hour power reserve. A sapphire crystal protects the dial, and the steel bezel complements the case. The stainless steel bracelet, secured with a steel