Pre-owned Seiko Extra Flat Watch. Reference J13000. Overall, this watch is in good condition. Watch shows light scratches and scuffs on the case. The crystal is mostly clean. Light patina on the dial. Fantastic textured dial and sub second hand.    

- Ref: J13000
- Serial No./Year: 604795/1956
- Case:
    32mm diameter, 17mm lug width, 8.6mm thickness, 38.4mm Lug-to-lug.
    Stainless Steel
- Complications: Sub second 
- Power Reserve: Unknown
- Frequency: 18000 Vph
- Crystal: Plexi/Acrylic
- Accuracy & Movement Health: 
    Measured Accuracy: -15 sec/day.
    Amplitude: 230 degrees
    Beat Error: 0.8ms
- Band: Replacement Leather band
- Water Resistant: No
- Condition Rank: Good Condition: Watch shows light scratches and scuffs on the case. The crystal is mostly clean. Light patina on the dial.  
- Country of Manufacture: Japan