Calibre 645
Automatic Movement Operation Manual
Automatic watches can be used only by those who are reasonably active as the automatic
winding relies on a regular movement of the wrist. The watch must be given an initial manual
wind of 8 to 10 turns and provided that it is worn on the wrist for a minimum of 8 hours each
day it will continue to function indefinitely and may be taken off the wrist for a maximum period
of 30 hours. If this period is exceeded the movement will stop and another manual wind will be
necessary. It must be remembered that when worn in bed the movement of the wrist is
insufficient to operate the automatic winding.
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.
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Water Resistance Table
Level of
Water
Resistance
Suitable for
Everyday
use
Can
withstand
accidental
splashing
Suitable for
Swimming
Suitable for
Pool Size
Suitable
for
snorkelling
or water
sports
Suitable for
high board
diving or sub-
aqua diving
None Yes No No No No No
3 ATM
(30m/
100ft
Yes Yes No No No No
5 ATM
(50m/
150ft)
Yes Yes Yes Yes No No
10 ATM
(100m/
300 ft)
Yes Yes Yes Yes Yes No
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
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Functions
- Hours
- Minutes
- Seconds
- Date
- Power Reserve Indicator
- Water Resistance – Check the back of the watch and refer to the Table.
Instructions for Time and Date Setting
1) To achieve an accurate date setting, by using a point device, press button A until
a date prior to the date you required is achieved. i.e. if today is the 16
th
then set
it onto the 15
th
.
2) Pull the crown out and turn the crown anti-clockwise until the correct date is
achieved. Now set the time but make sure the time is set onto AM or PM. Finally
push the crown back to Normal Position.
If the date is set between 10:00 PM and 02:00 AM, the date will not change
correctly.
The day and date is changed during the period from about 10:00AM to about
02:00AM.
Power Reserve Dial
This watch has a Power Reserve Indicator Dial to show amount of power remaining within the
movement. Wind the watch until the indicator hand on Power Reserve dial reaches the “40”
position, which means that it is now in full power. If the watch is not in use and Power Reserve
Indicator hand showing “40” position the watch will continue to function until the indicator
finally reaches “0”. At this stage the power indicator needs to be rewound until it reaches “40”
position stage.
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Calibre 645
IN6901
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