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You mean 9F85? Yes, it’s a quartz movement.
@Pifko with the mechanical watches, I don’t think the temperature fluctuations would impact the accuracy that much (maybe a couple of seconds here and there but nothing what the movements don’t do anyway). If you were to change the temperature by 30-40C few times a day, then that’s a different story.
PawG
I'll be honest and say I didn't see that far into the video. I would say that temperature would affect any movement though. Bark and Jack's most recent video has some great info on the Seiko GF85 movement and how it's regulated to check the temperature hundreds of times a day and self adjust to keep the timing as accurate as possible. All the mechanical parts of the piece are sealed in an air tight cabin to ensure that lubricant does not dry up and the moving parts are kept in optimum condition. This apparently ensure servicing is not required for around 50 years even though you still have to change the battery! Based on this though I would yes though.
Edit: Just checked and it's temperature fluctuations regarding the quartz crystal so probably ignore all that! I guess that if it's cold enough the parts may expand or contract but not sure if that would have a big affect or not.