This is a vintage Citizen Chrono Master Chronometer from the 1960s, featuring an automatic movement adjusted to chronometer precision via fine adjuster on the balance. It has a stainless steel case, gold eagle medallion on caseback, and comes with day and date functions.

• Condition: Pre-owned, showing signs of age and wear
• Movement: Cal. 5240
• Dial: patina and wear consistent with 55+ years of age
• Crystal: surface wear