Pre-owned IWC Grand Square Ref. 1871 Men’s automatic dress watch. Overall, this watch is in fairly good condition. The case shows moderate wear and the dial shows a fairly heavy patina. This watch measured -44 seconds per day on our timegrapher.

- Ref: 1871
- Serial No/Year: 2057188 / 1970
- Case:
    34 mm diameter, 20 mm lug width, 11 mm thickness.
    Stainless Steel
- Caliber: Caliber 8541
- Power Reserve: Unknown
- Frequency: 19,800vph
- Crystal: Acrylic
- Accuracy: 
    Our Measured Specs: -44 sec/day. (See Timegrapher)
- Band:
    Replacement Leather Band
- Water Resistant: N/A
- Condition: Fairly good condition. The case shows moderate wear and the dial shows a fairly heavy patina. 
- Made in Switzerland