The utility model relates to an accumulation stopwatch transmission mechanism and a clock with the mechanism; the accumulation stopwatch transmission mechanism comprises a second-counting axle (2) and a second-counting third-wheel device which are arranged between a core soleplate (1) and a clamping plate (3) in a rotation way; the second-counting axle is provided with a second-counting wheel (22) and a transmission gear (21); the second-counting third-wheel device comprises a second clamping plate and a third-wheel unit; the third-wheel unit comprises a first gear that is engaged with the second-counting wheel, and a second gear that is engaged with a second-pointer gear; a first gear key is connected with a first shaft; the second gear is mounted on a second shaft; the first shaft is arranged between the second clamping plate and the clamping plate in a rotation way; the first gear is connected with the second gear through a first-level gear or a second-level gear; the minute transmission ratio between the second-counting wheel and the second-pointer gear is equal to the seconds A that is previously counted for a circle of the second pointer relative to 60 seconds; the clock comprises the accumulation stopwatch transmission mechanism. The pre-determined second timing requirement that the second pointer rotates a circle can be satisfied through the third-wheel mechanism. The mechanism is simple and convenient to be used, and can prevent the mistake reading, and is easy to be manufactured.