Time Force Quartz Chronograph Miyota OS 10
These OS 10 movements are actually
and the stem looks gigantic from this perspective. You also see that there is still grease on the stem and you also get a good view of the 0-ring on the crown stem. As you can see the OS 10 caliber's plate is mainly plastic. Surprisingly the lume of this Time Force dial was still very good after 11 years, you can see the greenish gloom of the lume on the upper half of the dial.