SOLD 1968 Seiko Sealion M55 Day Date - Birth Year Watches
From Dingy to Dashing: A 1967 Seiko Sea Lion M55 Weekdater Watch Rebuild - 6206-8001 - YouTube
SEIKO, Selfdater, Sea Lion M55, wristwatch, 36 mm. - Bukowskis
Jual Jam Tangan Vintage Seiko Sea Lion M55 - Kab. Bantul - Gudang_z | Tokopedia
SOLD 1968 Seiko Sealion M55 Day Date - Birth Year Watches
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.