The Ingersoll caliber 522 is a multi-functional automatic watch movement. While watches with this movement may look like a chronograph, the pushers and subdials are used to display a day-date complication, as well as a 24 hour time indicator.
From the official Ingersoll caliber 522 manual:
“Automatic watches can be used only by those who are reasonably active as the automatic winding relies on a regular movement of the wrist. The watch must be given an initial manual wind of 8 to 10 turns and provided that it is worn on the wrist for a minimum of 8 hours each day it will continue to function indefinitely and may be taken off the wrist for a maximum period of 30 hours. If this period is exceeded the movement will stop and another manual wind will be necessary. It must be remembered that when worn in bed the movement of the wrist is insufficient to operate the automatic winding.”
Some of the topics covered in this caliber listing:
Position 0 – Against the case, manual winding mode
Position 1 – Pulled out one click, time setting mode
The pusher at 2:00 is used to set the date. The pusher at 4:00 is used to set the day of the week. When the watch in running, the automatic calendar system is working to advance the day/date between 10:00PM and 2:00AM.
Note: The official instruction manual states “The day and date is changed during the period from about 10:00AM to about 02:00AM.” This must be a typo by Ingersoll because it doesn’t make sense.
Also Note: As per the official documentation, do not attempt to set the day or date while the hands set between the hours of 6:00PM and 6:00AM, to avoid causing damage to the movement.
24 Hour Time Subdial:
The subdial at 6:00 displays 24 hour time. This is not the same as a GMT complication. The 24 hour hand simply mirrors the main time on the dial. This is useful for AM/PM (day/night) indication or quickly seeing the corresponding “military” time.
Ingersoll claims that watches powered by the cal. 522 have an accuracy of +/- 30 seconds per day in normal conditions.