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DEPTH GAUGE INDICATOR
If your watch is equipped with a depth gauge indicator, when you
make your descent the water pressure around you increases and
water enters the tunnel beneath the glass. The numbers on the inner
bezel show the approximate depth in meters. The depth is indicated
by the number the water reaches in the tunnel. When you make your
ascent, the water pressure decreases and water gradually leaves the
tunnel. This depth gauge indicator is not ISO 6425 certified.
DEPTH GAUGE
INDICATOR