The Ingersoll caliber IN 416 automatic watch movement is found in the popular skeleton dial Ingersoll Boonville IN2705WH model. This movement is Chinese-made with 22 jewels.
Ingersoll watches claims this movement should stay accurate between -30 to +30 seconds per day when worn under normal conditions.
This movement is equipped with a dual time complication. The subdial at 9:00 gives you the time in a second time zone. To set the two times:
In the Ingersoll manual, they state the following:
“Over wind of the spring may cause damage to the mainspring. Only wind the spring as far as it will go but not beyond.”