Five hundred years ago, time was still an imprecise quantity. The first portable watches, which
had just been invented, made do with a single
hour hand. This would be joined only much later
by a minutes hand and a seconds hand. Variations in accuracy of up to half an hour per day
were the rule in early pocket watches. Eventually, however, after John Harrison had invented
the first practical marine chronometer in 1759,
with which an exact determination of longitude
was possible for the first time at sea, accurate
time became a valuable commodity with the
ability to decide political power and the fate of
ship’s crews. The astronomical observatories
blossomed into suppliers of precision time
accurate to the second. Customers included the
maritime sector and scientific institutes, watch
manufactories and later also the railways.
The so-called regulator – the mother of all
watches – came into existence in this age of
awakening and invention. Only the stars were able
to perform more accurately. For the most part,
these were intricate precision pendulum clocks
with a spatially separated display of the three
conventional units of time: hour, minute and
second. Spring-operated marine chronometers
were also provided with this configuration.
The reason for the decentral layout of the dial is
surprisingly simple: The argument was that the
“slow” hour hand must not, when it is present
in the lower part of the dial, impair the readability of the small, but important seconds display
for a prolonged time. It was thus banished to an
inner dial of its own, where it could no longer
obstruct the other hands. The minutes hand
rotates by itself from the centre of the dial for
the same reason.
The regulator became a symbol for the most
accurate time measured by man. It goes without
saying that watch manufactories such as IWC
were consumers of the precise observatory time
on the one hand, but that they also maintained
it in their proprietary precision pendulum clocks
for as long as possible, in order to be able to
time all their new watches according to it.
With the Regulateur in wristwatch format, the
Schaffhausen manufactory pays tribute to this
significant piece of horological history. In spite
of the fact that this horological speciality had
scarcely been known previously in the private
sector, its following is increasing steadily today.
For it distinguishes its wearer as a connoisseur,
who is able to appreciate this rather different
way of displaying the time.
The fact that the first regulator from IWC is
housed in the 43.1 mm diameter case of the Portuguese watch is explained by a number of
sound reasons. The first pocket watches for the
wrist from Schaffhausen, which today give their
name to an entire family of watches, were also
supplied to the Portuguese markets 70 years
ago as particularly accurate timepieces and were essentially the first observer’s watches
for the wrist. This was assured not least by their
unsurpassed mechanical internal workings – the
original IWC pocket watch movement with its
legendary accuracy values.
The Portuguese Regulateur also remains true
to this company tradition. With the 98245 calibre
IWC manufactory movement, it possesses as
its drive mechanism a pocket watch movement
which counts not only among the most beautiful, but without doubt also among the most
authentic movements that are still in production
tothis day anywhere in the world.
As the calibre designation already reveals, the
actual design of the movement is based on the
98 calibre that has been the subject of constant
development and improvement by IWC for more
than 70 years and is a true milestone of movement technology. It has been combined with various quality features of the earliest IWC pocket
watch calibres, which can be traced back to the
founder of the company, F. A. Jones, and the
year1868. These include the distortion-resistant
three-quarter plate made of nickel silver and, as
a particularly typical feature, the elongated index
for the precision adjustment of the accuracy,
also known as the “Jones arrow”.
All of the technical advances in the detail that
have been made since the days of F. A.Jones,
have been integrated into this high-end movement with its classic balance frequency of
2.5 Hz– for example the resistance to shocks,
the seconds stop function or the adjusting
cams on the bars of the Glucydur screw
balance. A glance through the sapphire glass
back distinguishes this from the movement that
also drives the Portuguese Special Edition
Jones solely through the difference in movement decoration. Internally, however, the dial
train beneath the dial has been modified
for the Portuguese Regulateur to allow the
separate hour display to be accommodated
at “12 o’clock”.
This new scion of the Portuguese watch family,
which has long been regarded as one of the few
“enduring” design classics, displays the strong
points of its large format to their best advantage
on the silvered dial. All indications underline the
true purpose of this type of watch: to display the
time precisely and unambiguously. The dominant, lancet hand from the centre plays its
part together with a classic minutes dial in the
“chemin de fer” style, which takes its name
from theform of railway rails. The hour hand
moves overthe small dial with four Arabic hour
indices beneath the “12”. At the furthest point
from this, the seconds are displayed on the
inner dial at “6 o’clock”.
The new, exclusive edition of the Portuguese
Regulateur is limited to 500 watches in the
platinum variant. The versions in rose gold and
stainless steel are unlimited. All three watches
are equipped with crocodile leather straps and
clasps in the same material as the case.







