Opened up this WW2 Seikosha Japanese Navy deck clock the other day to check out the movement. http://i.imgur.com/hpNZvIf.jpg It has a eight day movement that keeps great time. You all ways think they made cheap stuff in WW2. But this clock was well built for it's day. Has a black coating for weather protection I notice the same type of coating on some US issued wristwatches like the A-11. Also has a cover over the regulator and balance wheel. Also posted a photo of one on a Japanese destroyer. And the parts of the movement look well made.