Model Details Brand Name – Casio Model Code – AQ-230GA-1DMQ Model Name - Casio Vintage Series Type - Analog-Digital Gender - Unisex Age Group - Teen or Adult Country of Manufacture - China Inclusions - Original Casio Gift Box, Instruction Manual, Retail Tags Sizing and Dimensions Case Diameter - 38.8 x 29.8mm Case Thickness - 8.1mm Band Width - 16mm Wrist Sizing - 14-20cm Overall Sizing - Small-Medium Weight - 47g Features Movement - Module 5154 Water Resistance - 30m Dial Colour - Black Dial Window - Resin Case finish material - Polished Silver Resin Bezel - n/a Crown - n/a Strap/Bracelet - Brushed Silver Stainless Steel Two-Piece Bracelet Clasp - Sliding Clip Illumination - None Stopwatch - 1/100 Second Timer - No Alarm - Daily Alarm and Hourly Time Signal Calendar - Auto Battery Life - Approx 3 years from new