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Technicians prepare to test two watches on 'KAIKO 700011', a remotely operated undersea research vehicle.
Both quartz and automatic watches, selected at random, will be tested.
The watches are affixed to the exterior hull of 'KAIKO 700011 with a high-resolution camera to monitor them.
Testing begins
Depth: 500m
3,284m: Quartz second hand stops
4,299m: Automatic second hand stops