Case Size 3H-9H: 43mm Case Size 12H-6H: 50mm Case Material: Stainless Steel Caseback Design: See-through Caseback Glass Material: Boxed Crystal Glass Glass Material: Caseback: Crystal Glass Movement: Automatic Self-Winding: Yes Jewels: 22 Jewels Vibration: 21,600 vibrations/hour Hand Winding: Yes Movement: Mechanical Caliber Code: Cal.F6T22 Made in Japan Feature: Second Hand Halt Mechanism: Yes Water Resistance: 30m See Full Specs