The Grand Complication from the Citizen Signature collection features a minute repeater, 1/4 second chronograph, perpetual calendar and 24-hour time. Designed with a dual-coated anti-reflective sapphire glass, and water resistant to 100 meters. Shown in titanium with rose gold tone accents, this watch additionally features a etched hidden deployment clasp. Grand Complication features Citizen eco-drive technology which means that it is fueled by light, any light, so it never needs a battery.Grand ComplicationBold cases with highly sophisticated precision timekeeping are hallmarks of this collection of Signature watches. Anti-reflective sapphire crystals provide a clear window to see the sophisticated details on the dial. Each Grand Complication watch is assembled by hand. Diagram of Features