60s Seven Hand-winding 23 Jewels Made In Japan Watch Vintage Mechanical

CITIZEN SEVEN manual winding 23 jewels, made in Japan in 1964.
18000 vibrations, low beat, silver sunray dial, CGP gold case, new leather band made by BAMBI.
The case width is approximately 1.54 inches (including the crown).
The lug width is approximately 0.71 inches.
This is the CITIZEN hand-wound watch "Citizen Seven SEOG51401-T".
It is a rare collection with very few existing models, as it was a short-lived hand-wound model that became the base for the automatic winding model autodater seven.
The dial is silver sunray.
It features a combination of multi-faceted applied indexes and pencil hands, a green 7 mark below 12 o'clock, a date at 3 o'clock, and a separate calendar with the day of the week in English at 6 o'clock.
The gold-colored (CGP) case has a thick, round form, and the back cover is a snap-back.