Kong
[Moderator]
7855
Not neccessary ...
Hi Thomas
Thanks for your reply.
It is not necessary to be the case of a single barrel has accuracy issue. For most watches when the power is dwindled till the end like balance of a day or two, the daily rate will fluctuate as it loses torque and affects the amplitude. Typically from my observation I see that too, and for pieces with power reserve indicator, I will try to keep the balance power above 50% of the total specified. That's also the reason, why some more complicated (and more costly) pieces, they build in either fussee and chain or constant force escapement to have regular power transmission even till the tail end of power reserve.
So what you mentioned especially 'the last days' is correct.
Let me borrow a picture from my another post ... you can observe the graph.
Kong
5 IWC Boutique Exclusives
Regular production pieces are more accessible in either boutiques or authorised dealers. However, boutique exclusive pieces are only available in brands' boutiques and are limited number of pieces in production. Within this post, we will have a quick look...
The "Le Petit Prince" is so attractive that ...
My wife give it to me. I went to the Boutique to grab my new Aquatimer Automatic with my wife and she saw the "Prince". Her single comment was "What a beauty. You must own it" and ... Done. I'm sure that I made "a monster". This is the second watch that s...
Blessed, yes but ...
My wife is a Purist on the making. You need to see, and you will, one of my acquisition that she "confiscated". Cheers, Nilo
Wow!
Congrats Nilo. Your wife is understanding and treats you like her Prince. For 2 pieces, did you reciprocate with something? :-) Thanks for sharing your 'Le Petit Prince', the blue dial looks very good and deep under daylight. Kong
Very nice Nilo...
I'm sure your Le Petite Prince to your wife. That's why she got you that watch, to remind you of whom you are to her. Her attractive little Prince. You're a lucky man Nilo.
Funny point is ...
That she could not care less about the Prince reference. She was/is hooked about the blue dial and the strap. Cheers, Nilo
Congrats Nilo
How wonderful that your wife gave you that IWC. Congrats! Regards, ED-209
I love that perpetual
But it really is too damn big, I just can't pull it off. But I love it. Too wide, too thick for a perpetual. But I love this version,
This version of the Portuguese Perpetual calendar
attracts me the most. What a lovely and IMHO timeless piece! The only thing that disturbs me is that IWC installs only one single barrel in a movement with seven days of power reserve... Cordially, Thomas
Would like to hear ...
from you more, the reason/s or any issue with one barrel. Thanks Thomas. Kong
Accuracy problems
Dear Kong, I sometimes read / heard about accuracy problems related to the single-barrel architecture combined with a power reserve of 7 days (more noticeable the last days of the power reserve) which were confirmed by one or the other dealer in personal ...
Not neccessary ...
Hi Thomas Thanks for your reply. It is not necessary to be the case of a single barrel has accuracy issue. For most watches when the power is dwindled till the end like balance of a day or two, the daily rate will fluctuate as it loses torque and affects ...
Why?
Dear Kong, many thanks for your detailed explanations. I also try to operate with a PR > 50%. Do you know why IWC doesn't just integrate a 2nd barrel? Are there any "technical" reasons (barriers) regarding the movement or is it simply a cost issue? I.e...
I hope ...
you are not under an impression watches with double barrels are more accurate. It is not likely to be true. I don't know why IWC does not pursue two barrels, but I feel there is no need for it. The 7-day movement is a large movement (nearly filled up the ...
In new light
Hi Kong, I must confess I am (or better) was under this impression. But it's not my own experience. Therefore your explanations now open the way for me to look at this special watch in a new light. I will see if I get the chance to try it on my own wrist....
I like the perpetual calendar :-)
Love the subtle red accents on the watch and the overall sleek look!
Like them all but the carbon ingenieur simple look with green is tempting.
Thanks, really great pics. Cheers Steve
Likewise ...
I find the work on the case really interesting, especially the part which can have two different textures on the same surface. Not sure if it is the same compression process as AP . Thanks for viewing, Steve. Kong