Do any of the newer in house movements allow quick date changes during the forbidden time

I am wondering if any of the new IWC movements allow you to quick change the date and time regardless of the time on the watch? I travel a fair bit and I just cannot predict when i need to change the time.

i also meant to specifically ask about whether the quartz version of the ardoise Chrono would be included in the above question

IWC has not produced any quartz movements in the past ?10 years ?

Do let us know which ardoise Chrono you are referring to.

I thought the IWC 387802 was a quartz movement

I thought the IWC 387802 was a quartz movement.

I'm afraid it is a mechanical movement - and an automatic one at that.

www.iwc.com/en/collection/pilots/IW3878/

I have seen this same description in multiple store ads. the IW3878 (02) is listed as quartz
www.amazon.com/IWC-Spitfire-Ardoise-Leather-IW387802/dp/B009AQBFVI

There is much mis-information out there on the web. The commercial link you provided is clearly wrong.

I would stick with the link I provided for the correct and accurate information - which is the official presentation of this ref 3878-02, residing on iwc.com.

You are correct. There are several vendors that have the same incorrect information. I have to say I do not like the IWC website in terms of usability. I do a lot of work with the internet but IWC needs to get some help from web designers.
Regardless, I still am wondering if any of the mechanical movements all quick date changes during the 9p to 3a time frame

Ahh, if only they could get the price wrong . . .

LOL!

Hi Mark1958,

What about a World Timer? I think it does exactly what you want and adds the bonus of another timezone too!

Kind regards,

Clemens

+1 ... the new World Timer is a pretty appealing option

If I relied on everything I read on the web about IWC I could own a Grande Complication for about $5,000. It would be my highest end quartz watch! LOL

Let me make an attempt to get this thread back on-topic.

As far as I know the date changing mechanism is interconnected with the timekeeping mechanism during the "forbidden times".
This is why it can be bad to quick-adjust during this period because of potentially harmful interactions between quick set date and timekeeping mechanisms. Outside the forbidden times the mechanisms are not coupled and can thus be used independently.

I do not know, however, if IWC made a watch that allows quick-setting the date during the forbidden times. If my argument above is true, then that would mean the quick-setting mechanism would have to be uncoupled somehow from the timing mechanism at all times, which I find hard to believe.

These are just my random thoughts on the subject, please do not act on them until confirmed or disproved by the real experts that attend this forum.

It is my understanding that some of the other newer movements do not have this forbidden date adjustment issue. Breitling and Rolex are two i am aware of

Hi Guys,
Most modern IWC,simple calendar,in-house movements are designed with a safety mechanism to offer limited protection against damage to the movement when quick-date is used in the 'forbidden zone'. This offers some protection for the occasional mistake but is not a function of the normal use of the watch, which can still be damaged if the forbidden zone is not respected. Your warranty will be void if forbidden zone damage occurs.
IWC use 2 different designs of safety mechanism.
The sprung date interlocking wheel turns the calendar disk with a mounted circular spring which engages the disk when turned clockwise and springs out of the way of the fast turning disk when the quick-date is used. Breitling use a similar method.

The cam style date interlocking wheel slowly arms a spring upto a sudden release which hits the date ring for a single powerful jump. While the spring is charging, the date disk can pass over it when the quick-date is used. Rolex use a similar method.

Please note that IWC insist that you to Do Not Use Rapid Date Change in the 'forbidden zone' on ANY of their watches.
Leo

Leo, thanks for this detailed and "knoweledge packed" explanation here!

It's clear to me that sadly you get to see too many watches in the depot, which have been "adjusted" in the forbidden zone

Thanks for sharing the knowledge.

My knowledge is by no mean official. But from what I've read here, I just try my best not to do any quick-date-change between 10 and 2.

I appreciate all the details. I am glad I had read about all of this prior to purchasing my watch