Bremont WATERMAN Manual Del Usuario página 10

The chronometer testing, which takes 15 days to complete over several
different temperature ranges and watch positions, means that the average
daily variation rate will be between -4 and +6 seconds. With 86,400 seconds in
a single day, this gives Bremont' s watches an accuracy of 99.998%.
WATCH CARE
Bremont watches are put through extensive testing before they are released
from the workshop - whether it is for time-keeping precision, temperature,
shock and scratch resistance or pressure testing; all of our strict tolerances have
to be met. Although Bremont watches have more than proved their resilience
before they are released from our workshop, we want to ensure that the
enjoyment that comes from wearing a Bremont timepiece lasts generations. We
therefore recommend that the following tips for watch care are observed...
CLEANING
Use warm water followed by a microfibre cloth to clean metal and
sapphire.
CROWN
Ensure that the crown is screwed in to prevent entry of water into
the mechanism.
SEA WATER
Wash with fresh water following exposure to saline water.