Seiko "Flyback Chronograph" Very Rare Blue Dial 7016-8001 Automatic Men's | eBay
Chronometer Check al Twitter: "Vintage Seiko 7016 goodness. Loved Seiko's older case designs, but that buried crown sure looks like a nail breaker. Great shot by IG//watches_es https://t.co/8YK5NGZwWR" / Twitter