Longines Ultra-Chron Big Box edition. Year: 2022 Case material: Steel Bracelet: Stainless steel and NATO strap Condition: Used, excellent condition Case Diameter: 43mm Crystal: Sapphire crystal Movement: Automatic, Caliber L836.6 Price: $2200 + shipping Payment: PP Goods and Services, Zelle, Venmo, Cashapp, bank transfer Timestamp: Last picture in the post. For sale Longines Ultra Chron watch that was inspired by the original Ultra Chron from 1960s. This is Big Box edition that comes with a stainless-steel bracelet and a NATO strap. This watch stands out with its high beat movement, 10 beats per second at 5Hz which gives the seconds hand a smooth flow. It has 52 hour power reserve, a silicon balance spring, and antimagnetic escape wheel. This watch has been labeled “Ultra Chronometer” by Longines due to its certification by TIMELAB. Longines partnered with TIMELAB to test these watches fully cased for 15 days (compared to COSC’s 10 days) to achieve variation between -4 to +6 seconds per day. In most cases these watches show even better result within -2 to +2 seconds per day. The shape and bezel’s color makes it look and feel smaller on the wrist than 43 mm. Watch comes with all papers and activated warranty; it was bought in September 2022. If you have any questions, feel free to contact me. Price can be slightly negotiated. Shipping method we can agree upon. It must be insured and with a signature though. Watch can be looked at and purchased in person in Charlotte, NC.