Casio Edifice Chronograph Slide Rule Quartz Watch EFR-506D-1A EFR-503D Specifications : Chronograph Slide rule 100-meter water resistance Day and date display at 3 o’clock EDIFICE logo stamped on the crown, back cover, and buckle Mineral Glass Screw Lock Crown Screw Lock Back Case / bezel material: Stainless steel Double-lock, 1-press, 3-fold Buckle Stainless Steel Band Solid Band 1-second stopwatch Measuring capacity: 11:59'59 Measuring mode: Elapsed time Regular timekeeping Analog: 3 hands (hour, minute, stopwatch seconds), 3 dials (timekeeping second, stopwatch hours, stopwatch minutes) Accuracy: ±20 seconds per month Approx. battery life: 5 years on SR927W Size of case/total weight: 51.5 X 44.9 X 11.3 mm/163 g
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