This is the Men's Purple Lowdown Watch by Nixon. This watch measures 21-28 mm from the 3 o'clock to the 9 o'clock position, to give you a rough estimate of the size. This watch is awesome for surfing, snorkeling, spearing fish, whatever you do at the beach because this watch has a digital tide function - which has 15 years of tide data for over 200 beaches pre-programmed into it. This watch is unique and has a rad color, along with alarm functionality, made by Nixon, sold at EXIT real world.