EN-15
• Proper signal reception can be difficult or even impossible under the conditions
listed below.
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near high-
tension
power lines
Among
or behind
mountains
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to ten minutes, but in some cases
it can take as long as 20 minutes. Take care that you do not perform any button
operations or move the watch during this time.