| Brand | Ingersoll |
| Caliber Number | 526 |
| Movement Type | Automatic |
| Jewels | 23 |
| Power Reserve | Unknown (comment below) |
| Vibrations Per Hour | Unknown (comment below) |
| Features | Hours, minutes, central seconds, day, date, day/night indicator |
| Country of Manufacture | China |
| Known Models | IN1301 |
Ingersoll automatic caliber IN 526. This movement was found in an Ingersoll Pittsburgh model IN1301SL and IN1301BRG. Chinese-made with 20 jewels featuring a big date display, day, month, and 24 hour subdial.
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