J.Market Quartz Watch Mens Canvas Waterproof Quartz Fashionable Men Watch with Date Function with Canvas Band (Green) High strength glass and Quality quartz movement Canvas watch band,With calendar funtion, Unique Design Diameter of watch dial :4 cm,Watch band adjustable from 17.50-24.5cm,weight:38g How to set Date:If the watch is on normal position(A gear),then we pull it out lightly,we will be at B gear,we turn it counter-clockwise at B gear,then we can set Date and if we pull it out further more then we will at C gear,then we can set time. The perfect gift for your friends and family and and Perfect Gift for St. Valentines Day Christmas, New Year, Thanks Giving Day, Birthdays