Item details Item number 284999 Brand name Chanel Item name Chanel Watch J12 Electro H7121 World Limited 1225 pieces Multicolor Index Black Dial Black Ceramic Quartz Analog Model size Ladies Material Black ceramic Stone used Dial color Black Movement Quartz analog Ref. NO H7121 Serial No. LB****** Function-Features 3 Needles Waterproof 20 ATM water resistant Accessories Warranty Listed date: July 2021 COSC certified card Case size Case diameter approximately 33.7 mm (1.33 in) (Excluding crown) Band-strap Arm circumference approx. 17.2 cm (6.77 in) Bracelet width approx. 14.0-15.9 mm (0.55-0.63 in) Bracelet Color - Black Weight