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Calibre 417
Mechanical Movement Operation Manual
A Mechanical watch is a device for keeping time, which uses the energy from a wound spring,
and keeps time through the highly regulated release of that energy through a set of gears (the
wheel train) and an escapement. It differs from typical quartz watch in that it uses purely
mechanical components to keep time. Mechanical watches typically can run for about 40
hours on one full winding of the mainspring.
Important
Over wind of the spring may cause damage to the mainspring. Only wind the spring as
far as it will go but not beyond.
Time Stand Accuracy
1)
21,600 beats per hours
2)
Accuracy between -30 to +30 seconds per day worn under normal conditions.
Butterfly Strap Adjusting Instruction
Firstly, open the butterfly buckle and then pull out the pin. Adjust the strap to the required
length, and then push back the pin into the correct hole. Finally, close the butterfly buckle until
it clicks into place.
Page 1
Calibre 417
IN7900WHB
Page 4
Water Resistance Table
Level of
Suitable for
Can
Suitable for
Suitable for
Water
Everyday
withstand
Swimming
Pool Size
Resistance
use
accidental
splashing
None
Yes
No
No
No
3 ATM
Yes
Yes
No
No
(30m/
100ft
5 ATM
Yes
Yes
Yes
Yes
(50m/
150ft)
10 ATM
Yes
Yes
Yes
Yes
(100m/
300 ft)
Water resistance is not permanent. In the course of time, the gaskets of the case and
crown may become worn and reduce the water resistance of your watch. We recommend
the periodic checking
Normal Crown – always make sure it is pushed fully into case
Screw down Crown – tighten screw down crown completely to screw lock position.
To maintain water –resistance crystal, crown and case must remain intact
Exposure to Salt Water
If your watch is designed for sports or working in the water and it becomes exposed to salt
water or significant amounts of perspiration, it should be rinsed in fresh water and dried
thoroughly with a soft dry cloth.
Important
Buttons must not be operated while in contact with water
Page 2
Calibre 417
IN7900WHS
Page 5
Functions
-
Hours
Suitable
Suitable for
for
high board
-
Minutes
snorkelling
diving or sub-
-
Seconds Hand Dial
or water
aqua diving
sports
-
Water Resistance – Check the back of the watch and refer to the Table.
No
No
No
No
No
No
Instructions For Time Setting
Yes
No
1)
Pull crown out and turn the crown clockwise or anti-clockwise until the correct
hours and minutes shown. Finally push crown back to Normal Position.
Page 3
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