Seiko SBDC137 Mechanical Brown Nylon JDM Watch SUR311P1 Power Reserve: 42 Hours

Power Reserve: 42 Hours

Caliber J850

Caliber 6N76

Without Radio Reception Function

Vibrations: 21

Seiko SBDC137 Mechanical Brown Nylon JDM Watch SUR311P1 Power Reserve: 42 HoursSeiko Prospex SBDC137 JDM Automatic Nylon Watch Specifications: Seiko Prospex Watch Series #SBDC137 Nylon Strap Brown Dial 200m Water Resistance Mechanical Self Winding (with Manual Winding) Caliber 6R35 24 Jewels Date Display Stainless Steel Case Sapphire Glass Magnetic Resistance Accuracy: Daily Difference +25 Seconds ~ 15 Seconds Drive Period: Lasts for About 70 Hours at Maximum Hoisting See Through Back Screw Back Screw Lock Type Crown Lumibright