Stay on time with the Citizen PROMASTER Yacht Timer JR4065-09E, featuring a Caliber No. C660 Eco-Drive and water resistance up to 20bar. This advanced timepiece has a Super Titanium? case and sapphire glass. With a maximum run time of approximately 4 years from full charge, you'll be ready for any adventure. Featuring a 24hrs, Date, Day & Month Display, Alarm, Analogue/Digital Time Display, and more, get the precision you need with the Yacht Timer.?