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
For Sale Seiko 6138 7000 "Slide Rule"
SEIKO CALCULATOR PILOT Slide Rule Automatic Watch Ref 6138-7000 44 Mm EUR 925,93 - PicClick IT
Vendesi Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... per 2.280 € da un Trusted Seller su Chrono24
Watch with a cunning rotary slide rule
SOLD – Seiko 6138-7000 Slide Rule – Blair Watch Project