Seiko
Seiko Chronograph 'Slide Rule' (Ref. 6138-7000)
From $2,999
The Seiko 6138-7000 was designed for those who wanted a slide rule on their wrist for conducting mathematical calculations. Its “Calculator” denomination refers to the slide rule double bezel that can be used to complete any number of mathematical equations on the fly.
Brand: Seiko
Reference: 6138-7000
Movement: 6138
Case: Stainless steel
Size: 44mm
Lug to lug: 46.5mm
Year: 1971
Strap: Seiko bracelet
Box/papers: No
CONDITION & SERVICING
-The beautiful matte dial is in excellent condition.
-The unpolished case is in very good condition not showing any notable damage.
-Serial and reference numbers are both visible.
-Hands and markers are in good condition, both showing matching lume patina.
-Service history is unknown.