Omega Geneve with buckle, manual wind, working (engraved on case back)

(Price reduced as the date change time is expected to shift between 9:30 PM and 10:00 PM.)

Thank you for looking.
This is a 60s-70s Omega Geneve manual wind watch.
While there are minor scratches and small spots on the dial, I believe it is still a stylish and cool watch that can be fully enjoyed.
To adjust the time, pull the crown out one click. To change the date, pull the crown out two clicks, and the date will change at that moment.

Case size is approximately 35-36mm.
The previous owner reportedly did not perform an overhaul during their 6-7 years of ownership, but it is currently running well with a daily difference of about 30 seconds when placed flat.
An Omega buckle is attached to a Bambi leather strap.
The case back is engraved with what appears to be a mark for the Ashinaga Ikueikai (for orphaned children's education) or Yomiuri (a newspaper company?).
Please judge the rest from the photos. If anything is unclear, please do not hesitate to ask questions.

This item is also being sold and lent out through various channels. To avoid a purchase conflict, we would appreciate it if you could send us a message first.