Omega Speedmaster X-33 Marstimer - STE; STM - TRUE SOLAR TIME ON EARTH AND MARS - USE; Exit programming mode; To determine the direction of North on Earth (STE) or Mars (STM), position the watch horizontally so that the 12 indicator is pointing to the sun. Press pusher P1; the seconds hand will point to north. Press pusher P1 again to display the seconds for local true solar time (LTST).; To exit the STE or STM function, press pusher P2.

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Exit programming mode
stE / stm - truE solar timE on Earth and mars - usE
To determine the direction of North on Earth ( ) or Mars ( ), position the watch
horizontally so that the 12 indicator is pointing to the sun. Press pusher P1; the seconds hand will
point to north. Press pusher P1 again to display the seconds for local true solar time (LTST).
To exit the or function, press pusher P2.