Restoration project, bought at a car boot sale. This uses the Ebauches Bettlach 8800 movement. It has a curious orange seconds (?) hand with another hand fixed to it at 90 degrees - the two hands move together. I can only guess what this could be for - given the 'jogging' theme I wonder if it was to mark the start/end of a 15-second period used for counting heart beats. Can anyone explain?

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