Seiko 7017 Sliderule Flyback
The sale of this cool piece does not include calculation skills, which we confess to be oftentimes incompetent at. The inner bezel rotates as it should and the pilots or mathematicians among as may be able to use it to extract logarithms or results from the scales in it. What makes it extra cooler is the fat minute hand that almost sweeps this into pilot watch category.
Seiko 7017-6020 Flyback Chronograph
43mm Stainless Steel Case width
Seiko 7017A Automatic movement
19mm Lug Width
June 1970 Date of manufacture
The bezel insert has some wear marks but still in decent condition for this vintage.