Sea lion] [m55] [6206-8001] weekdater 26 jewels. Still works. I picked up this watch from a moving sale. I didn't think much of it until I found it again in my stuff.
Vintage Seiko Sealion M55 Gold Plated Automatic Mechanical Dresswatch Calendar Made in Japan 1960s Gents Watch Crosshair Sunburst Dial - Etsy UK