Christopher Ward C8 Power Reserve User guide

C8 UTC Worldtimer
Owner’s handbook
C8 Power Reserve
Chronometer
Owner’s handbook

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Time on your side...
Introduction
Contents
C8 Power Reserve Chronometer 2–3
Technical information 4–5
How to operate your C8 Power Reserve 6–10
Our watch care programme 11
Keeping in touch 12
Your Christopher Ward watch has been designed
and engineered by experts to ensure not only precise
timekeeping, but also to give you a sense of pride
whenever you wear it.
You’ve made an investment, a good one, and the
aim of this handbook is to help you make the most of
it during what I hope will be a lifetime of ownership.
Christopher Ward

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C8 Power Reserve Chronometer
C8 Power Reserve
When our Calibre SH21 movement was
launched in 2014, its designer, Johannes
Jahnke, promised that it would provide a
canvas for him to experiment with further
innovations and complications. The new
C8 Power Reserve Chronometer shows
this has now become a reality.
With its DLC (diamond-like carbon) black case and
dial, highly legible indexes and Arabic numerals, the
C8 PR COSC carries with it many of the design cues
of famous aviation timepieces like the Smith’s Mark II
A clock found in the Spitre. In truth, it feels more like
a timing instrument than regular watch.
The hand-wound version of our own movement
is every bit as impressive as its automatic sibling.
Thanks to its twin barrels, when fully wound, it'll
deliver an incredible ve days of power.
Like the self-winding version of Calibre SH21,
chronometer status is standard, while a power
reserve complication – as promised in the name
of the watch – counts down the time until the
next wind.
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C8 Power Reserve Chronometer
Features
• In-house calibre SH21 hand-wound movement
(100% Swiss made) with power reserve
complication
• 120 hour power reserve
• Decorated twin barrels of SH21 visible
through exhibition caseback
• Bridge engraved and finished in black PVD
• Marine-grade black DLC steel case
• Date wheel with numbers cut from disc
• Power reserve indicator
• Seconds sub dial
• Push-down crown with stamped design
• Gun-metal hands
• Light Old Radium SuperLuminova®
on hands and indices
Technical information
Diameter: 44mm
Height: 11mm
Weight: 81g
Calibre: SH21 hand-wound automatic
Case: 316L stainless steel
Water Resistance: 5 ATM (50 metres)
Vibrations: 28,800 per hour (4 Hz)
Timing tolerance: -4/+6 seconds per day
Lug to lug: 53.2mm
Strap: 22mm
Technical information
• ‘Whip stitch vintage leather strap
• Beautiful presentation case and owner’s handbook

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How to operate your C8 Power Reserve
Setting the time/date
123
1. Manual winding
2. Date setting
3. Time setting

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How to operate your C8 Power Reserve
The crown should sit ush to the case (position 1 )
in order to maintain water resistance.
• To re-power the watch after a period of non-use,
simply wind the crown in a clockwise direction
until the power reserve indicator shows 100%
power.
• Pull gently into position
2 . For rapid date
correction, turn in an anti-clockwise direction.
• To set the time pull out the crown gently into
position
3 . This position is used for handsetting
and stopping of the second hand. Turn the crown
until you reach the correct time e.g. 10.08 hr.
For precise time setting it is recommended you
pass beyond the desired minute and to set the
hand backwards.
PLEASE NOTE: As this watch uses a manually
wound mechanical movement, take care
not to overwind the crown past the point of
resistance as it will damage the movement.
Date correction should not be carried out
between 20.00 hr and 02.00 hr as the watch
gearing will already be aligning itself to
change the date.

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How to operate your C8 Power Reserve
The power reserve function
The power reserve indicator shows the winding
status of the main spring.
• When the hand is in position A , the
movement is close to stopping. The watch
should therefore be wound manually to
obtain a maximum power reserve.
• When the hand is in position
B , the watch
is at its maximum winding position.
Take care not to overwind the crown past
the point of resistance as it will damage
the movement.
A
B

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