Main Features:
Water resistant to 20 ATM.
Screw down crown.
Screw back
Calendar display (date)
Anti-reverse rotating bezel.
Accuracy: ±20 seconds per month
Battery Life: Approx. 3 years (*This is the value when you replace a new battery after purchase. The batteries that are pre-set with your watch at the time of purchase will run out in a short period of time due to the monitor battery used to check the functionality and performance of the watch built in during manufacture. )