Case: Case Material: Stainless Steel Caseback Design: See-through Caseback Movement: Automatic Self-Winding: Yes Jewels: 24 Jewels Vibration: 21,600 vibrations/hour Hand Winding: Yes Movement: Mechanical Caliber Code: Cal.F6222 Made in Japan Feature: Second Hand Halt Mechanism: Yes Date: Yes Water Resistance: 30m