Η Seiko ειχε βγάλει ένα φεγγάρι ρολόι που λειτουργούσε παίρνοντας ενέργεια από τη διαφορά θερμοκρασίας σώματος και περιβάλλοντος
Movement - Thermic 6C12.
Water resistant - up to 30 m only (withstand accidental contact with water such as splashed and rain).
Crystal oscillator frequency - 32,768 Hz (cycles per second).
Loss/gain (monthly rate) - Less than 15 seconds at normal temperature range (5 - 35oC) (when wearing the watch).
Operational temperature range - -10 to +60oC.
Driving system - stepping motor, 4 pieces.
Display system - Time display (hour, minute, second and date [second: battery indicator]), calendar display (month, date [fully automatic calendar until February 28, 2100), hour and minute; time difference adjustment (+/- 23 hours [date] and hour).
Battery - second lithium ion battery.
Retention time - From full charging to stop (about 10 months).
Other functions - remaining energy level warning; power saving function; charging level display function (indicator).
Electronic circuit - dedicated microcomputer; recharging control circuit [2 C-MOS-LSIs].
Power generator - Thermal conversion element.
