Results indicate over the 3 day test period, overall it has kept close to perfect time. The watch only ever ran one second fast throughout the entire trial.
On the 28th from 7:32am to 10:30pm the watch was not worn. Going by the results, I suspect my Calibre 79320 gains time when worn and loose time when unworn. The watch was placed on it's back (face up) when not worn.
I am extremely please with the Calibre 79320 performance.
1,589 Discussions and CommentsMember since May 16, 2002
At last I can read what so many failed to understand that it's what happens over a period of days rather than over just one day. Wishing Sven a speedy recovery and would be interested in a repeat of his experiment when he has resumed full normal activities. I wish my two portuguese (chrono & auto) were as accurate and consistent.
5,023 Discussions and CommentsMember since May 29, 2003Sarasota, FL,
United States
Sven these are great results. I usually test my watches over at least a one week period if possible. But I have noticed that there is usually one position which totally skews the results. For example, for some reason, if I place my BP crown down at night the watch is nowhere near as accurate as in other positions. Usually it is no more than plus 2 seconds as long as I avoid that position. So it is good to experiment if this bothers you.
89 Discussions and CommentsMember since Feb. 25, 2006
Manufacturing excellence, modified and tweaked to near perfection. :)
I think all IWC-modified ETAs will probably perform better than any of those new mechanical movements out there, including their own IWC in-house movements.
80 Discussions and CommentsMember since Dec. 29, 2010
I have a very pleasing update to make:
4th Feb 2011 4:30am : +1 sec.
Since my last post, the watch lost 2 seconds and the gained 3 resulting in positive 1 second. I have been wearing watch the entire time. I suspect inactivity, due to my medical recovery, caused the loss of the two seconds. Last few days my surgical wound has healed to a point where I can be more active thus the gain in time.
In a week or two when I am hopefully back in my normal routine, I will reset the watch and take down daily results.
This wasn't the most controlled experiment. Most of the time I wore the watch but for the last half day it has been off my wrist.
Also factor in that I spend most if my day in bed so the watch is getting minimal movement, even when worn (I am recovering from a medical procedure).
The results:
25th 10:44pm :SET
26th 6:40pm : 0
28th 7:32am : +1
28th 10:30pm : 0
Results indicate over the 3 day test period, overall it has kept close to perfect time. The watch only ever ran one second fast throughout the entire trial.
On the 28th from 7:32am to 10:30pm the watch was not worn. Going by the results, I suspect my Calibre 79320 gains time when worn and loose time when unworn. The watch was placed on it's back (face up) when not worn.
I am extremely please with the Calibre 79320 performance.
Last edited: 12 March, 2013 - 12:43
My GST Auto Chrono has been keeping that same results since the day I bought it in July 2002......+2 sec/day.
That's consistent!!!!
Cheers,
Nad
These type of postings - and your pride in owning this watch, is what IWC is all about. Thank you for sharing it.
Best regards
Mark
Best regards
Mark
Last edited: 16 April, 2013 - 00:36
Wishing Sven a speedy recovery and would be interested in a repeat of his experiment when he has resumed full normal activities.
I wish my two portuguese (chrono & auto) were as accurate and consistent.
Cheers Greg Chalk
Cvanwhite at aol dot com
Last edited: 21 February, 2013 - 13:47
I usually test my watches over at least a one week period if possible. But I have noticed that there is usually one position which totally skews the results. For example, for some reason, if I place my BP crown down at night the watch is nowhere near as accurate as in other positions. Usually it is no more than plus 2 seconds as long as I avoid that position.
So it is good to experiment if this bothers you.
Last edited: 8 November, 2012 - 12:49
I think all IWC-modified ETAs will probably perform better than any of those new mechanical movements out there, including their own IWC in-house movements.
Last edited: 8 February, 2012 - 16:43
4th Feb 2011 4:30am : +1 sec.
Since my last post, the watch lost 2 seconds and the gained 3 resulting in positive 1 second. I have been wearing watch the entire time. I suspect inactivity, due to my medical recovery, caused the loss of the two seconds. Last few days my surgical wound has healed to a point where I can be more active thus the gain in time.
In a week or two when I am hopefully back in my normal routine, I will reset the watch and take down daily results.
Last edited: 12 March, 2013 - 12:43