Casio G SHOCK Stainless Steel Red Dial Analogue Digital Men's Solar Watch GSTB400AD 1A4 Diver battery life: 2 years on Delicate rose gold tones battery life: 2 years on CR2016 Swiss Military by Chrono minute (hand moves every 20 seconds)) battery operating time:7 months on rechargeable battery (operation period with normal use without exposure to light after charge)18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)AccuracyAccuracy: ±15 seconds per month (with no mobile link function)Other features12 24 hour formatDate month display swappingDay display (days of the week selectable in six languages)Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents