SEIKO PROSPEX BABY TUNA KENJI MADE IN JAPAN AUTOMATIC DIVERS 200M Seiko SBDY053 Watchkeeper Seiko SBDY053 Watchkeeper SEIKO Prospex Baby Tuna Monster Diver Scuba SBDY053 WatchCharts SEIKO PROSPEX BABY TUNA KENJI MADE IN JAPAN AUTOMATIC DIVERS 200M. The Seiko Prospex SBDY053 embodies the brands legacy of professional grade dive watches, combining Japanese precision with rugged design. Powered by the reliable 4R36 automatic movement, it features both manual winding and hacking seconds for precise time setting. The striking ice blue dial with luminous hands and indexes enhances underwater visibility, while the unidirectional rotating bezel and screw down crown ensure professional level 200 meter water resistance. Specifications Model: SBDY053Movement: Automatic (Cal. 4R36) with manual windingJewels: 24Accuracy: +45 to 35 seconds per dayPower Reserve: Approximately 41 hoursDisplay: AnalogFunctions: Day & Date display Stop seconds (hacking) function Unidirectional rotating bezel Screw down crown Magnetic resistance Case & Band Case Material: Stainless steel Bracelet Material: Stainless steel Glass: Hardlex crystal Dial Color: Ice Blue Band Color: Silver Case Back: Screw case back (see through) Crown: Screw lock type Water Resistance: Divers 200 m (ISO compliant) Size & Weight Specification Metric (mm) Imperial (inch) Case Height 51 mm 2. 01 in Case Width 48 mm 1. 89 in Case Thickness 14 mm 0. 55 in Lug Width 22 mm 0. 87 in Wrist Circumference (max) 215 mm 8. 46 in Weight 190 g 6. 70 oz