TUDOR GMT - Setting the Reference Time

A B C D
SETTING THE REFERENCE TIME [position D]
To set the reference time, unscrew the crown and then pull
it out to the second notch. The seconds hand is stopped,
allowing you to set the time to the precise second.
Put the bezel in the neutral position (align the triangle
onthebezel with the 12 o’clock marker on the dial).
Set the reference time using the 24-hour hand (against the
graduations on the bezel) and the minute hand (against
the graduations on the dial) by turning the crown in either
direction.
Setting the reference time also moves the conventional hour
hand (local time). For this reason, the reference time must be
set before setting the local time.
REFERENCE TIME
Geneva: 10:10 a.m.