SEIKO 5 AUTOMATIC 7009 YELLOW COLOR DIAL DAY/DATE MEN'S WATCH WORKING ORDER | eBay
Amazon.com: Seiko 5 Men's SNZG09K1 Sport Analog Automatic Khaki Green Canvas Watch : Clothing, Shoes & Jewelry
7009-3131] considering buying this vintage day date and I'm quite new to collecting watches so I was wondering if it's a good idea, and if there's a way of authenticating the authenticity