Calibre 978
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
Water Resistance Table
Level of
Water
Resistance
Suitable for
Everyday
use
Can
withstand
accidental
splashing
Suitable for
Swimming
Suitable for
Pool Side
diving
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
Page 2
Functions
- Hours
- Minutes
- Seconds Balanced Wheel
- Dual Time Hours Dial
- Day / Night (AM / PM) Dial
- Water Resistance – Check the back of the watch and refer to the Table.
Instructions for setting the Home time / Dual Time
Important: Before setting the Dual Time check if the hour hand is synchronised to full
hour on Dual Time dial. If the hour hand is not synchronised to the full hour then turn
the crown anti-clockwise until the hour hand is positioned exactly on the full hour and
then turn the crown clockwise until the minute hand is positioned exactly at 12 o’clock
mark.
1) Pull the crown out to first position and turn the crown anti- clockwise to set the
dual time. For example, if the local time is 12 o’clock, dual time can be set for
different country’s local time i.e. Paris 1 o’clock. Refer to the World Time Zone
table on Page 4.
2) Once the correct dual time is set, turn the crown clockwise to set the correct
home time.
3) Finally push the crown back to normal position.
4) The 12/24 hour (Day/Night dial) will indicate AM and PM.
Page 3
World Time Zone Table
OFF SET
HOURS
TIME ZONE
STANDARD HOURS
OFF SET
HOURS
TIME ZONE
STANDARD HOURS
0 London 0 London
+1 Paris/ Berlin/ Madrid -1 Cape Verde
+2 Istanbul -2 Mid-Atlantic
+3 Moscow -3 Greenland
+4 Abu Dhabi -4 Santiago
+5 Islamabad -5 USA (Eastern)
+6 Dhaka -6 USA (Central)
+7 Bangkok -7 USA (Mountain)
+8 Beijing / HK -8 USA (Pacific)
+9 Tokyo Seoul -9 Alaska
+10 Sydney -10 Hawaii
+11 Guam -11 Samoa
+12 New Zealand -12 Kwajalein
•
For other County’s time zone refer to World Time Zone map.
Page 4
Calibre 978
IN5304
Page 5
Calibre 978
IN5305
Page 6
