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TECHNICAL GUIDE
● Water resistance test
Check the water resistance according to the designated specification of the watch.
Marking on the case back
WATER RESISTANT (WATER RESIST)
WATER RESIST 5BAR
WATER RESIST 10BAR
WATER RESIST 15BAR
WATER RESIST 20BAR
SCUBA DIVER'S (AIR DIVER'S) 150 m
SCUBA DIVER'S (AIR DIVER'S) 200 m
He-GAS DIVER'S 300 m
He-GAS DIVER'S 600 m
He-GAS DIVER'S 1000 m
Test method
Air leak test
Water pressure test
Condensation test
Condensation test
Water pressure test
Condensation test
17/19
Applied pressure
3 BAR
5 BAR
10 BAR
15 BAR
20 BAR
18.75 BAR = 150 (m) times 0.125
25 BAR = 200 (m) times 0.125
37.5 BAR = 300 (m) times 0.125
75 BAR = 600 (m) times 0.125
125 BAR
= 1000 (m) times 0.125
Cal. 8T63A
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