Comparing the old and new IWC Portugieser Perpetual Calendar

We at Monochrome clearly love IWC watches . Particularly with regards to their famous pieces. The IWC Portuguese Perpetual Calendar is such a piece. First presented in 2003, this watch has been dependent upon minor changes two or three years, without significantly changing its unmistakable personality. In this way, it's currently an ideal opportunity for us to compare the shiny new 2015 release with the past rendition, and to perceive what changes can been seen – or perhaps be ...

Comparing the old and new IWC Portugieser Perpetual Calendar

We at Monochrome clearly love IWC watches . Particularly with regards to their famous pieces. The IWC Portuguese Perpetual Calendar is such a piece. First presented in 2003, this watch has been dependent upon minor changes two or three years, without significantly changing its unmistakable personality. In this way, it’s currently an ideal opportunity for us to compare the shiny new 2015 release with the past rendition, and to perceive what changes can been seen – or perhaps be unseen?

Throwback – The Perpetual Calendar by IWC Watches

How did the perpetual calendar by IWC get its famous status? At the point when you are attempting to comprehend why a watch acquired such a lot of distinction, you need to comprehend its verifiable significance. On account of the IWC Portuguese Perpetual Calendar, this significance was not really acquired by a Portuguese watch, but instead by the Da Vinci Perpetual Calendar, a watch that fairly stunned the business. This Da Vinci Ref. 3570 was first presented in 1985. For IWC, it was the dispatch of the perpetual calendar movement into wristwatches. The man behind it was Kurt Klaus. During the mid-1970s, when the Swiss watch industry was gigantically influenced by the quartz emergency, Kurt Klaus was making a straightforward calendar component that must be fitted on top of a pocket watch movement. At the point when he completed the watch being referred to, he introduced it to IWC, which was intrigued by his accomplishment – and later chose to create it. Kurt Klaus was accountable for the prototyping, the plan and the creation of the watch. The market for pocket observes anyway diminished rapidly and toward the finish of the 1970s, pocket watches were nearly gone.

Because of that, IWC needed to zero in on wristwatches. IWC moved toward Kurt Klaus to make a calendar instrument once more. While he was occupied with his past task, he clearly acquired a great deal of involvement with the field of plan, creation and prototyping. Subsequently, Klaus felt he could make something more complicated and needed to add something additional exceptional. Consequently, he didn’t make a straightforward calendar instrument, yet the perpetual calendar component that is currently highlighted in the IWC wristwatches. This system likewise must be fitted on top of a current movement. In any case, around then, most perpetual calendars must be changed through various pushers, something Mr Klaus didn’t endorse. He needed the movement to be not difficult to set and all changes must be finished by the crown. The thought was really to fit the instrument on a Jaeger-LeCoultre movement, however Günter Blümheim concocted the plan to plan the watch with a chronograph as base-movement – and you need to envision that the entirety of this must be managed without the assistance of any computers, which makes it all in all an achievement.

Now we know why the perpetual calendar watches by IWC are extraordinary. Notwithstanding, what makes the IWC Portuguese Perpetual Calendar so unique? Obviously, the movement referenced above takes an interest (regardless of whether the Portuguese doesn’t highlight a chronograph as base movement, yet rather the renowned 7-day movement). It fundamentally is the equivalent module as utilized in the Da Vinci. Just the size of the instrument is unique, just as the exactness of the moon stage complication (one three day weekend in 122 years for the Da Vinci versus on day away from work in 577 years for the Portuguese). You additionally need to understand that the Portuguese is an assortment known for its stylish, exemplary and ageless plan. Combining the old style looks of the Portuguese with the astonishing perpetual calendar movement makes an intriguing combo.

Now we are in the year 2015 and that is extraordinary for IWC, as it is the 75th commemoration of the Portuguese. Along these lines, IWC chose to add new watches into their assortment, similar to the Annual Calendar and the commemoration pieces ( here and here ). Other than a few new watches, they likewise updated a couple of watches, including the Portugieser Perpetual Calendar (note the difference in name… ). What changes would you be able to anticipate? We should have a more detailed look.

The 2015 IWC Portugieser Perpetual Calendar Ref IW5033-01 (in 18k white gold)

What are the changes? All things considered, there are a considerable amount of contrasts, plan savvy and movement-wise. To put it plainly, the distinctions are:

The name – Portuguese versus Portugieser

The past adaptation was named the “IWC Portuguese Perpetual Calendar” – the upgraded one is named “IWC Portugieser Perpetual Calendar”. IWC returns to the first German name.

The movement – type 51613 versus calibre 52610

While the past form was fueled by the 51613 type, the 2015 edition highlights the 52610 type. The new form currently includes a twin-barrel framework, rather than a solitary barrel guaranteeing the force hold – consistently with 7 days of force save however with a superior strength over the full scope of power.

The rotor is additionally extraordinary. The new rotor is currently executed in 18k gold rather than hardened steel and it shows a part of the way skeletonized shape, with sloped angles.

Some specialized parts are likewise improved, including the winding pawls and programmed wheel made of dark ceramic. Rotor bearing is made of white earthenware. The entirety of this for a superior obstruction and dependability since ceramic is basically sans wear. There’s presently an Index-less offset with an expanded recurrence of 4 hertz (28,800 beats each hour) combined with a Breguet spring.

The generally speaking movement had been updated with new scaffolds, more open to have a superior view on the specialized components. At long last, there’s a more pleasant completion, with slanted points on the scaffolds and more details on the pinion wheels, spans, wheels, screws (presently blued).

Old version on the left, new release on the right.

The lugs

When comparing the drags, you can see that, on the most recent release, the hauls are more limited and furthermore more bended. This may appear to be a little change, yet the vibe on the wrist is very unique. The watch feels more adjusted on the wrist and better change (even on more modest wirsts), making it simpler and more elegant.

Old version on the left, new release on the right.

The crystal

The 2015 adaptation has a container type sapphire precious stone, while the former one has a level sapphire gem. Along these lines, it permits to have a somewhat more slender bezel on the 2015 release of the IWC Portugeiser Perpetual Calendar and a more slender profile.

Old version on the left, new release on the right.

The logo on the dial

Looking at the dial of the two watches, you can see that on the past adaptation the name IWC Schaffhausen was composed with a bend. This is distinctive on the upgraded one, which is written in a straight line.

Old version on the left, new release on the right.

The strap

While the past version accompanied a dull earthy colored gator lash by IWC, the 2015 IWC Portugeiser Perpetual Calendar comes with a dark croc tie by Santoni.


Taking all the progressions into thought, any reasonable person would agree that the watch is refreshed pretty enormously, regardless of whether the greater part of these progressions stays exceptionally unobtrusive (or undetectable). It is fascinating to observe that a watch can experience such countless changes without forgetting about its character. Taking a gander at the two watches, we need to concede that it stays an update and not another watch – which is unmistakably not that bad.

Talking about the value, we need to compare the cost of white gold adaptations (and not the hardened steel release shot here, evaluated a lot of lower). The past variant in white gold is as of now valued at 34,100 Euros and the new IWC Portugeiser Perpetual Calendar adaptation in white gold is estimated at 41,200 Euros. (The Limited Edition in treated steel is evaluated at 25,600 Euros).

I might want to express gratitude toward Dale Vito Boom for his article on the different IWC Portuguese Perpetual Calendar models , that filled in as rule and motivation for my article.