Slide Rule Calculator ' - Seiko Ufo Ref'7000 - Automatic Chronograph Cal'6138 Japan - Good Vintage Condition - Good Working - Circa Jun... | Instagram
SOLD — Seiko 6138-7000 Slide Rule – Blair Watch Project
Klein Vintage Watch | Seiko 6138-7000 Slide Rule chronograph. New to me and I love it. It's 's so nicely worn in. Original blue cursor ring too. New vid... | Instagram