- Second hand has resolution of 1 second and 1/100 of a minute intervals (outer scale is divided in 1/100 min.)
- For recording periods from 1 second to 60 minutes in seconds
- Has start, stop, and reset buttons on top
- Instantaneous return: by depressing top black button in running position, hands return to zero; and by releasing button results in both hands starting to record the next interval of time
- Luminous markings at each 5 minute interval and on tips of the hands
- Hand wound, spring driven, good for 20 hours.
- May be wall mounted.
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