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The first round.
GMT:
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Seamasters:
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GMT:
Seamasters:
The buck stops here! We put the first batch through their paces (accuracy results)
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Mark was good enough to run a very comprehensive test of each model this afternoon on our Timegrapher. I'll admit, it was killing us yesterday not to throw up an ad hoc version of this as we went, but I think most of you will find this information very interesting in regards to some of the accuracy concerns we've seen posted here before.
First up, the obligatory action shot of a sexy model at work:
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We tested using the following procedure:
Next, a control- the Rolex Daytona:
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The Rate is expressed in +/- Seconds per day.
The Beat Error is measured in milliseconds and basically the measurement of minute variations in the beat of the watch.
The Amplitude is expressed as the number of degrees of swing of the balance from rest (in the centered position) to the end of its excursion in either direction. In a healthy, freshly-serviced watch, amplitude should be between 275 to 310 degrees in the horizontal (dial up or dial down) position.
In a vertical position (crown down, left, up, or right), amplitude will drop about 45 degrees due to increased friction in the balance pivots. An acceptable minimum for vertical positions is about 230 degrees
Trace Quality is shown on the Timegrapher as a line or lines that show the +/- Rate, Beat error and pallet fork movement.
So.. how did we do?
First up, the obligatory action shot of a sexy model at work:
We tested using the following procedure:
- Each watch was wound 30 times and not given any settle down time. It was placed on the timegrapher microphone and testing began.
- Each watch was tested in 5 positions, 30 seconds on each position. Crown Up, Crown Left, Crown Down, Dial Down and Dial Up.
Next, a control- the Rolex Daytona:
The Rate is expressed in +/- Seconds per day.
The Beat Error is measured in milliseconds and basically the measurement of minute variations in the beat of the watch.
The Amplitude is expressed as the number of degrees of swing of the balance from rest (in the centered position) to the end of its excursion in either direction. In a healthy, freshly-serviced watch, amplitude should be between 275 to 310 degrees in the horizontal (dial up or dial down) position.
In a vertical position (crown down, left, up, or right), amplitude will drop about 45 degrees due to increased friction in the balance pivots. An acceptable minimum for vertical positions is about 230 degrees
Trace Quality is shown on the Timegrapher as a line or lines that show the +/- Rate, Beat error and pallet fork movement.
So.. how did we do?
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While we'd love to test each watch, right now it's about getting a general consensus for each different movement. We will offer the option (at a small cost) to have this done for individual orders, but testing each one before it ships will add up (time-wise, pun intended) in a hurry.
Our goal right now is to know (with certainty) that "X" will fall within a certain parameter. The more we can test and track these results the better.
Thanks guys. Let's keep the party rolling..
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The last round:
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At work:
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For further comparison..
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Re: Your words in writing - Rolex Daytona
Thank you, that's what I get when I can't sleep and I post.
My original post was an error and I have edited it.
[EDIT: Mods have deleted it. ]
Thank you, that's what I get when I can't sleep and I post.
My original post was an error and I have edited it.
[EDIT: Mods have deleted it.
]
1 - 20 of 30 Posts
