Seiko 5R66 Manual - Page 11
How to set the moon phase - clocks
![]() |
View all Seiko 5R66 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 11 highlights
English Tips for more accurate time setting • Keep in mind the following points in order to set the time more accurately. 1. Before setting the time, wind the mainspring sufficiently until the power reserve indicator shows the fully-wound state. 2. When starting to use a watch after it stops, wind the mainspring sufficiently and wait approximately 30 seconds after the second hand starts to move, then pull the crown out to the second click. 3. Do not stop the second hand movement for 30 minutes or longer while the crown is at the second click position. If the stoppage of the second hand movement exceeds 30 minutes, push the crown back in to restart the second hand, wait at least 30 seconds, and then carry out the time setting once again. ● How to set the moon phase • The moon phase represents the period from the time when the last new moon occurred to noon of the current day in day increments. ´• The period between new moons is called a "synodic month," and its average length is approximately 29.5 days. 1. Pull out the crown to the first click. 2. Slowly turn the crown counterclockwise (the 6 o'clock position) to advance the moon phase by one. First, set the moon phase to either "0" (new moon) or "15" (full moon), then advance it one by one until it shows the correct moon phase. 20 English Moon phase 0 (new moon) * Round off the number of moon phases to the nearest whole number. (Example; 7.8 ➔ 8, 24.2 ➔ 24 ) * Refer to the weather report of your local newspaper for current moon phase information. * While the hour hand of the watch is between the 9 o'clock and 2 o'clock positions, do not adjust the moon phase. If it is necessary to set the moon phase during this time, pull out the crown to the second click, turn the crown counterclockwise (the 6 o'clock position) to temporarily advance the time past 2 o'clock, push the crown back to the first click, and then adjust the moon phase. 3. Push the crown back in upon completion of moon phase setting. Moon phase 7 Moon phase 15 (full moon) Moon phase 22 21
![](/manual_guide/products/seiko-5r66-manual-36a8c3b/11.png)