OLD MAN Secret vintage watches - 1978s Vintage Seiko diver SQ “Tuna can” 7549 The first professional 300m diver in the world Xx,xxx฿ / sold | Facebook
![Fratello Friday: Explaining the Seiko 6159-7010 “Grandfather Tuna” | WatchTime - USA's No.1 Watch Magazine Fratello Friday: Explaining the Seiko 6159-7010 “Grandfather Tuna” | WatchTime - USA's No.1 Watch Magazine](https://www.watchtime.com/wp-content/uploads/2015/02/Seiko_6159-7010-Tuna_front_560.jpg)
Fratello Friday: Explaining the Seiko 6159-7010 “Grandfather Tuna” | WatchTime - USA's No.1 Watch Magazine
![Seiko Grandfather Tuna Professional 600m Diver Titan Vintage 1976 for $5,564 for sale from a Seller on Chrono24 Seiko Grandfather Tuna Professional 600m Diver Titan Vintage 1976 for $5,564 for sale from a Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/23706918-s8o16y62cy6vdpuf3l04xffm-ExtraLarge.jpg)