Rectangular metal box with glass cover, containing a transistorized quartz crystal chronometer. Model QC-951-II. Cert. No. C-50753. Chronometer serial no. 20757. Quartz Oscillator No. DSC-1869. Instructions printed on the bottom of the instrument. In a fitted case lined with rubber. This chronometer (A-202) consists of multiple parts, some located on 19/4.
Material
Signed on the front: Seiko [and on the back]: Suwa Sekosha Co., Ltd./ Made in Japan. Marked on top: set to Greenwich Mean Time / Crystal Chronometer
