(Watch with a balance wheel to regulate time and a mainspring as its source of energy. The mainspring is wound by the movement of the wearer.) If the watch is completely stopped, manually turn the crown approximately 20 times to wind up the mainspring
1 年 セラー保証（スタンプ付け）
セイコー説明書 4R37 海外輸入ので日本語の説明書なし。英語の説明書が付きます。ご了承ください。
All Automactic Watch will gain/lose time
All automatic watch will gain or lose time when they are new or not worn on the wrist all the time. The watch will "settle down" to a more reasonable accuracy level after being worn for a couple of months. If your watch loses or gains a few seconds per day, you can take it off at night and:
- Lay the watch flat with the dial uppermost (To gain a few seconds if it is slow).
- Lay the watch vertically with the winding-button downwards. (To lose a few seconds if it is fast).
- Lay the watch vertically with the winding-button uppermost. (To lose more seconds if it is too fast).