Seiko Premier Big Date Calendar SUR016 SUR016P1 SUR016P Men's Watch seiko womens Features: Case Bezel Material: Resin Resin Option:Glass Green Features: Case Bezel Material: Resin Resin Strap Quartz Movement Mineral Crystal Analog Digital Display Shock Resistant Magnetic Resistant Speed Measurement LED Light Afterglow (Super Illuminator) World Time 29 Time Cones (48 Cities + Coordinated Universal Time) 1 1000 Second Stopwatch Countdown Timer 5 Daily Alarms (With 1 Snooze Alarm) Hand Shift Feature Hourly Time Signal Full Auto Calendar (To Year 2099) 12 24 Hour Format Regular Timekeeping Accuracy: ±15 Seconds Per Month Day Display Solid Case Back Buckle Clasp 200M Water Resistance Approximate Size Of Case: 55 x 51 low maintenance option for daily wear 5mm Approximate Case Thickness 10 Features: Two Tone Stainless Steel Case Two Tone Stainless Steel Bracelet Caliber 6N76 Quartz Movement Sapphire Crystal Gold Tone Hands And Markers Big Date Calendar Screwed Case Back Folding Clasp With Push Button Release Silver Tone Sunray Dial With Roman Numerals 100M Water Resistance Approximate Case Diameter 41