Chr. Ward C900 WORLDTIMER Guida utente

C900 WORLDTIMER

O W N e r ’ s H a N d b O O K

Your Christopher Ward watch has been designed

and engineered by highly talented craftspeople

to ensure not only accurate and precise

timekeeping but also to bring a real pride of

ownership that only luxury items of the highest

quality can ever hope to deliver.

You have made an investment, a good one,

and the aim of this handbook is to help you

make the most of that investment during what

I hope will be a lifetime of ownership.

Christopher Ward

TIME ON YOUR SIDE...

INTRODUCTION

CONTENTS

HISTORY OF THE WORLDTIMER 2–3

YOUR C900 WORLDTIMER 4–7

THE WATCHMAKER 8–11

TECHNICAL INFORMATION 12–13

HOW TO OPERATE YOUR

C900 WORLDTIMER 14–25

OUR CW360 WATCH CARE

PROGRAMME 26–27

GENERAL INFORMATION 28

THE WORLDTIMER

HISTORY OF THE WORLDTIMER

The emergence of the Worldtimer is

attributed to the growing importance

of air travel and telecommunications.

One of the most useful functions available on

a watch is the ability to know the hour in more

than one time zone. Traditionally worldtimer dials are

complex and difﬁcult to read, and do not legislate

for individual summer and winter time changes in

certain countries. Therefore at certain periods of the

year not all time zones indicated will be correct.

Worldtimers were originally developed in the 1930s

by Louis Cottier, a famous independent watchmaker

from Geneva. He devised a clever mechanism

that gave the time in all time zones on a single dial

at a glance.

Following the success of this ingenious system,

Cottier specialised in complicated world time

watches and produced designs for the most

prestigious Geneva brands, notably

Patek Philippe, Rolex, Vacheron Constantin

and Agassiz.

Above: Louis Cottier

Right: Cottier Vacheron

Constantin worldtimer,

the first Cottier Universal

Time watch signed

Vacheron Constantin

dating from 1932.

THE WORLDTIMER

Right: Christopher Ward

C60 Trident GMT Automatic.

Below: A rare and distinctive

Asassiz world time vintage yellow

gold wrist watch circa 1945

made by Louis Cottier. It includes

an original three-piece dial

with moveable world time ring.

His production totalled only 455 movements

for world time pocket watches, wristwatches,

and clocks. His work is easily recognisable

by the distinctive shape of the hour hand.

The ﬁrst Cottier Worldtimer, created for Vacheron

Constantin in 1932, was a pocket watch

with the times of 31 cities on the dial.

Cottier invented the very ﬁrst two-crowned

world time watch for Patek in 1950. He was also

heavily involved in the creation of the archetypal

GMT watch, the Rolex GMT-Master II, which was

developed for Pan-Am pilots in the 1950s.

Christopher Ward was inspired by this classic

for its own highly successful C60 Trident GMT models,

which we ﬁrst introduced in 2010.

YOUR C900 WORLDTIMER

Unlike other 24 time zone watches,

your C900 Worldtimer is designed

to be easy to set and simple to read.

Prepare to be amazed.

The C900 Worldtimer has been ingeniously modiﬁed

to make it easy to read across two different time

zones. Instead of only the GMT hand rotating once

every 24 hours to indicate the second time zone,

celebrated Watchmaker, Johannes Jahnke,

has changed the gearing system of the ETA 2893

automatic movement so that the hour hand also

take 24 hours to complete a full cycle.

Additionally, Johannes has added

a rotating disc which has the time

zones indicated by individual airport

codes in a window at 24 o’clock.

The airport abbreviation makes the

location much easier to read than if

it were spelled out in full amongst many

other place names at the edge of the dial,

as is usually the case.

In another unique modiﬁcation, the same disc

simultaneously indicates the geographic location

on the C900’s magniﬁcent 3-dimensional world

map dial.

The backplate lists in time zone

sequence, the codes of the main

airport in each of the designated

cities. The modified ETA 2893

can be observed through the crystal

exhibition window.

YOUR C900 WORLDTIMER

The longitude and latitude meridians are raised

against the map and the oceans are expressed

in blue with small dimples giving them a three

dimensional quality.

The deﬁning difference between the C900

Worldtimer and other GMT watches, is that by

modifying local time from a 12 hour to a 24 hour

system, together with the inclusion of a day

and night indicator, it allows the user to have

a clear understanding of the time difference

between the two time zones indicated.

“IT IS ANOTHER HUGE STEP IN OUR STRATEGY

OF BRINGING TECHNICALLY INNOVATIVE

AND STRIKING ATTRACTIVE WATCHES

TO THE MARKET AT ACCESSIBLE PRICES.”

CHRIS WARD

This unique and magniﬁcent timepiece is

beautiful and moves the art of horology a little

further forward. We are proud it bears our name.

THE WATCHMAKER

Q. Without giving any trade secrets away,

can you explain the modifications you

have made to the ETA 2893 movement

for the C900 Worldtimer?

J. Firstly, we have changed the speed of the

standard hour hand so that the hand turns once

per day. This makes it easier to read the home-time

and it’s better to compare the two time zones.

Normally it is easy to change the speed of a hand,

but the movement wasn’t prepared for changes like

this. The standard GMT hand is driven by the standard

hour hand. So if we only slow down the hour hand,

the GMT will turn only once per two days.

And then we have added the location map with

the airport code on top. The problem was the

integration of the crown function to the setting of

the location disc.

AN INTERVIEW WITH JOHANNES JAHNKE,

CREATOR OF THE C900 WORLDTIMER COMPLICATION

The C900 Worldtimer is the third

complication that master

watchmaker Johannes Jahnke has

undertaken for Christopher Ward.

Like the Jumping Hour and the

Single Pusher Chronograph

before it, the Worldtimer will set

a new standard for the entire

watchmaking industry in terms of

ingenious design and incredible

value. Here, Johannes describes

his pride at making a watch

which is both beautifully crafted

and horologically innovative.

THE WATCHMAKER

Q. Why do you think nobody has ever

approached a Worldtimer watch in this

unique way before now?

J. Often constructions are made in a very

complicated way. The standard GMTs (like ETA 2893)

are really cleverly made. Easy and good to use.

But there is a big gap between these industrial

calibres and the haute horologerie.

I think it is the special mind of CW of adding

something clever without adding 200 parts that

is different. We have thought about a connected

(more complicated) system where you can simulate

the times in the time zones. But it makes no sense

because due to time zone changes (summer and

winter) and other inﬂuences, a programmed watch

cannot be right at any time. So we think our system

is less complicated, but it was still difﬁcult to realise

with the existing movement. Maybe this was the thin

line between industrial and Geneva watchmaking

which is so unique. In other words, we have made

the complicated simple.

“WE THINK OUR SYSTEM IS LESS

COMPLICATED, BUT IT WAS STILL DIFFICULT

TO REALISE WITH THE EXISTING MOVEMENT.

MAYBE THIS WAS THE THIN LINE BETWEEN

INDUSTRIAL AND GENEVA WATCHMAKING

WHICH IS SO UNIQUE.”

JOHANNES JAHNKE

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