Breitling A173192A1B1A1, Instructions For Use Manual

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15
DECOMPRESSION VALVE
To avoid a potential explosion when returning to the surface, the case of your Breitling
chronometer is fi tted with a decompression valve that vents the gases – mostly helium –
that accumulate in the case during prolonged immersion at great depths.
SPECIAL CHARACTERISTICS
14
SPECIAL CHARACTERISTICS
RIDER-TAB BEZEL
The bezel of your watch is fi tted with 4 hour-markers called
rider-tabs : they are used as points of reference to mark a start
time or a limit time you wish to remember. On models without
a chronograph, they also provide a "minute chronograph"
function enabling you to measure time elapsed in minutes.
Rider-tabs make it easier to rotate the bezel by giving a better
grip (especially when wearing gloves) and additionally protect
the glass.