Hamilton Khaki Aviation-Pilot Day-Date Automatic Stainless Steel Watch

Turn the crown clockwise about 20-30 times when the watch has stopped. Wear the watch regularly to keep it wound.

It is recommended to have the watch serviced every 3-5 years to maintain its accuracy and prolong its life.

Yes, the watch is water-resistant. Avoid prolonged exposure to water.

The watch has an 80-hour power reserve.

The watch uses the H-30 automatic movement.

The case size is 42mm.

The bracelet is made of stainless steel.

Pull the crown to the first position to set the date, and to the second to set the time and day. Rotate the crown to adjust the values.

Have the watch professionally serviced to check for mechanical issues or magnetism.

Wind the watch manually, and ensure it is worn regularly to maintain power.

Make sure you aren't setting the date/day in the "danger zone". Pull the crown to the first position and rotate the crown forward/backward until the correct date and day are displayed.

Take the watch to a professional watchmaker as this indicates a potential water entry.