Seiko 5] bought a vintage Seiko 5 (1977) from eBay. I know it's not the most expensive watch but I thought I'd be a great timepiece to start of my watch collection! :
Vintage Seiko 5 Day & Date Black Dial Stainless Steel Automatic Men's Watch | eBay
SEIKO 5 New Five Deluxe Cal.5139A Automatic Vintage Watch 1967's Overhauled | eBay
New Old Stock Seiko 5 Ladies' automatic vintage watch, 4206-0332, Japan made, in perfect conditions, very strong, NOS.
Which vintage Seiko 5 models are rare and have collectible value? - Quora
OLD SEIKO 5] Price? : r/Watches
Which vintage Seiko 5 models are rare and have collectible value? - Quora