Features

How to use


F990

Summer time

Setting summer time

  1. Pull the crown out to position 1.
  2. The second hand points to 30 seconds and stops.

  3. Rotate the crown to set [TME] or [LLI] on the mode indication to the ◀ marker.
  4. !

    Set the mode name you want horizontal.

    !

    When the mode is [UTC], you can only change summer time setting of the home time.

  5. Pull the crown out to position 2.
  6. The function indication indicates summer time setting of the home time (SMT ON/OFF).

  7. Press and release the lower right button A.
  8. !

    Each time you press the lower right button A, SMT ON/OFF changes alternately.

  9. Press and release the upper right button B.
  10. The function indication indicates summer time setting of the local time (SMT ON/OFF).

    !

    Each time you press the upper right button B, the minute hand of setting target slightly moves and the target (home time/local time) of time zone setting changes alternately.

  11. Press and release the lower right button A to change summer time setting of the local time.
  12. Push the crown in to position 0 to finish the procedure.
  13. The second hand returns to indicate the second.

Related articles

About summer time

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About chronograph