Casio Edifice Ef-543d-1av

Case / bezel material: Stainless steel Double-lock, 1-press, 3-fold Buckle Stainless Steel Band Solid Band 100-meter water resistance Mineral Glass / Spherical Glass Tachymeter Screw Lock Crown Screw Lock Back Partial ion plate Measuring capacity: 59'59.95" Measuring mode: Elapsed time Date display Regular timekeeping Analog: 3 hands (hour, minute, stopwatch seconds) 3 dials Accuracy: ±20 seconds per month Approx. battery life: 2 years on SR927W Size of case/total weight: 52 X 47.8 X 13.7 mm/180 g