In celebration of the end of 2020, and in the countdown to 2021, eBay is giving away ten watches over ten days. It\u2019s a giveaway series that you don\u2019t want to miss, and one that can cap your year with a once-in-a-lifetime timepiece. Today, eBay is giving away a Cartier Tank. Visit eBay\u2019s Instagram post below to find out how to enter. LEARN MORE Terms and conditions apply. To view the terms of the giveaway, click here .