Amazon.com: LOREO Women。The watch uses high quality quartz movement to ensure the accuracy of the date and time. Ladies casual watch with high hardness glass and adjustable steel strap. The steel belt will not fade. Luxury crystal diamond and Roman digital dial have elegant fashion style and perfect design. Waterproof to Can be used for hand washing, rain and water sports, swimming and bathing in cold water, please do not press any button underwater. How to adjust the calendar Gently pull the knob out division, rotate up to adjust date, gently pull the knob out division, rotation adjustment time.