Take action and show your inner drive with the rich styling of a 1/5 second chrono measuring up to 60 minutes. Black resin accents enhance the 44.5mm steel case. Features 12/24 hour time, date, luminous accents and 100M WR. Drive’s pierced metal motif appears on the black dial, and the crown’s “D” completes this edgy look. From the Citizen Design Studios, Drive from Citizen Eco-Drive is fueled by light, any light, so it never needs a battery. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B612.