News & Events
Careers at IWC
Da Vinci Family
Portugieser Sidérale Scafusia
Retail & Service
Where to find us
Service and Support
Product Manuals and Warranty
Sign Up for the IWC Newsletter
Movements and technical details
> Date changing during ...
Date changing during 8pm-5am doesn't really damage the movement?
Feb. 15, 2013
3 Discussions and Comments
Member since Feb. 14, 2013
Can't see who the poster who asked the question....
I am not the best expert on this, but I believe the reason for this was, around 8 pm, the date gears start their sequence and finish the sequence completely around 2 or 3 am.
I heard that once this has started, and you decide to change the date, it can throw it out calibration of the date change sequence, or even in an extreme case on a 7750, seize the movement.
Again, not an expert, but this is what I have read.
Me personally, when I pick up one of my watches that has no power left in the spring, I will wind it a bit, then go straight to the time set function, and move the hands forward until i see the date change, so I know exactly where mid night is and set the time, then the date.
Last edited: 15 February, 2013 - 13:51
Feb. 15, 2013
5,715 Discussions and Comments
Member since Aug. 9, 2006
Exactly my procedure as well. You should not attempt to set the day / date with the quick set during the forbidden time as you noted.
Last edited: 1 April, 2015 - 15:37