C9 Jumping Hour Mk III - Wristwatch Christopher Ward - Free user manual and instructions
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| Product Type | Wristwatch |
| Brand | Christopher Ward |
| Model | C9 Jumping Hour Mk III |
| Gender | Men |
| Movement | Swiss mechanical self-winding chronometer |
| Power Source | Automatic movement, no battery required |
| Power Reserve | 38 hours |
| Case Material | 316L stainless steel |
| Case Diameter | 42 mm |
| Case Thickness | 12 mm |
| Lug Width | 22 mm |
| Dial | Silver opaline with jumping hour aperture |
| Crystal | Sapphire glass with anti-reflective coating |
| Water Resistance | 5 ATM / 50 metres / 165 feet |
| Strap | Alligator leather with pin buckle |
| Functions | Jumping hour, minute hand, small seconds |
| Number of Jewels | 25 jewels |
| Vibration Frequency | 28,800 vph (4 Hz) |
| Cleaning | Wipe with a soft dry cloth; avoid chemical cleaners |
| Maintenance | Professional servicing recommended every 3-5 years |
| Safety | Not suitable for diving; avoid strong magnetic fields |
| Spare Parts | Authentic parts available via authorized service centres |
| Warranty | 60-month movement warranty |
Frequently Asked Questions - C9 Jumping Hour Mk III Christopher Ward
How does a jumping hour watch display time?
In a jumping hour watch, the hour is shown in a window on the dial, while the minutes are read from a conventional minute hand. At each precise hour, the numbered disc rotates instantly, creating a mechanical leap.
How do I wind my C9 Jumping Hour Mk III if it has stopped?
To restart the watch, unscrew the crown (if screw-down) to position 1 and turn it clockwise about 20 times. This manually winds the mainspring and starts the movement. Then set the time by pulling to position 2.
How do I set the time correctly?
Pull the crown to the time-setting position and turn it until the minutes show the desired time. The hour disc will advance automatically as the minute hand passes 12. Make sure the crown is pushed back in properly after setting.
Is the watch water-resistant for swimming?
With a rating of 5 ATM (50 meters), it can handle accidental splashes and rain but is not suitable for swimming, diving, or water sports. Dry it thoroughly if it gets wet.
How often should the watch be serviced?
To maintain chronometer accuracy, have the movement cleaned and oiled every 3 to 5 years. This includes replacing worn parts and checking seals.
Can I replace the leather strap with a metal bracelet?
Yes, the 22 mm lug width allows you to fit a compatible bracelet or strap. Use a spring bar tool and be careful not to scratch the case. If uncertain, ask a professional watchmaker.
What is the jumping hour complication for?
It offers a clear, legible readout of the hour and adds mechanical interest. The instant jump showcases the engineering precision of the watch and reduces the need to glance at the hour hand.
Why does my watch gain or lose time?
Mechanical watches are affected by gravity, temperature, and magnetization. If it exceeds the chronometer spec (-4/+6 sec/day), have it demagnetized or regulated by an authorized service center.
What is the power reserve of this model?
The movement stores up to 38 hours of energy. A full wind from daily wear will last overnight, but if not worn for more than a day, use manual winding to restart.
How do I care for the leather strap?
Keep the strap away from water and excessive moisture. Wipe it with a dry cloth and apply a leather conditioner occasionally. Over time, replace the strap when it shows signs of cracking or wear.
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Product information
Brand : Christopher Ward
Model : C9 Jumping Hour Mk III
Category : Wristwatch