Set the day of the week : English only. Set of the date: Press the button near the 3:00 position. Set of the days of the week : Turn the hour hand for 24 hours to set it. The day difference time of an antique watch is about +-1 minute / day.For practical, everyday use, it would be advisable to have the movement cleaned and oiled. For more information, please look at the pictures. The antique watches we sell are inspected and adjusted so they work fine. Also, please confirm the item when you receive the item. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "nonkun0508" and is located in this country: JP. This item can be shipped worldwide.