Pre-owned 1972 Seiko "Jumbo" or "Big Chrono" Chronograph Men's Automatic Watch. Overall this watch is in very good condition. The watch shows light scratches and scuffs on the case, crystal, and bezel. Chrono and quickset work as they should. This watch oozes cool. It is fantastic on the wrist. Overhauled in October.

- Ref: 6138-3000
- Serial No./Year: 277157/1972
- Case:
    40mm diameter, 18mm lug width, 15mm thickness.
    Stainless Steel
- Caliber: 6138 Automatic Chrono
- Power Reserve: Unknown
- Frequency: 21,600bph / 3hz
- Accuracy & Movement Health: 
    Measured Accuracy: +9 sec/day.
    Amplitude: 220 degrees
    Beat Error: 0.1 ms
- Band: Seiko 5 Sports Bracelet 
- Water Resistant: Vintage Waterproof mark, not recommended for swimming
- Condition: Very Good: Overall this watch is in very good condition. The watch shows light scratches and scuffs on the case, crystal, and bezel. Chrono and quickset work as they should.
- Made in Japan