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Jun 27, 2017, 02:43 PM
#1
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Jun 27, 2017, 03:35 PM
#2
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Jun 27, 2017, 04:48 PM
#3
Member
Great article. Thanks for sharing!
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Jun 27, 2017, 04:58 PM
#4
think could be wrong it all to do with position of subdials as on a 3017 it has it nearer the six as you say but on a 3017 up down sub dial pocket watch seems to be in the same place , but looks different some what from what I have seen looks almost possible upside down but can't be , if you see this 3017 you will see what I mean
3017 sub dial side by side
but think about it with the 3017 the movement is just flipped to fit so on thought it would still be in the same place on the movement but just looks liked it's moved
Last edited by is that my watch; Jun 27, 2017 at 05:05 PM.
sharky
one of the most original good guys their was never anything but a true friend "the daito to my shoto"
rest easy good buddy
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Jun 27, 2017, 05:13 PM
#5
but looking into it the movement is a Pierce 134 in-house movement so they could build it how they like I suppose as most other are model on some of the more well know movements so that could be it it
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
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Pierce 134
Features
manual-wind chronograph, 60s, 60min, pillar wheel
sub second
Data
13''', Dm= 28.85mm; Do= 29.35mm
H= 7.0mm
F= 0.85mm
T= 2.2mm
7/17 jewels
f = 18000 A/h
power reserve 30h
Balance staff U1621
Stem W2046
Mainspring / battery
Zf1245, 1.50 x 10.5 x 0.12 x 320mm
Hands
2.35 x 1.48 x 0.35 / 0.35 x 0.21mm
Comments about the data |
Remarks
indirect minute
unusual: ratchet on dial side, crown mechanism with rocker bar
Patented axial clutch for second counter (Fig.3-5):
The minute wheel A is not in the center like in conventional movements. It drives the hands gears via canon pinion (Fig.2), and the third wheel B. This drives the sub second C and the detachable center second D.
On the center-second arbor with heart disc E and minute-counter driver F the pinion G with clutch H is running. Pushing (left in Fig.4) the arbor will clamp the clutch washer I beween F and H, and thus couples both together. The two points on H are then pressed into the soft washer I, thus reliably connecting both parts.
The clutch H is kept floating with springs J and K, and the spring L keeps the clutch parts apart. Coupled is by a lever (Fig.1, center) pressing on the center-second arbor. As the heights of all springs are adustable, the clutch can be sensitively adjusted to engage and disengage reliably without too much friction loss.
In most chronographs the clutch is realised by gears, and therefore the second counter jumps one tooth forth or back when started. This doesn't happen here, but there is a drawback in return: The original clutch washers I became brittle after some time, and replacement isn't available since long. But one can make them from suitable plastic material.
Example, year: signature; shock device
ca. 1945: Pierce Watch Co. Inc., Swiss, M, Patented, 17 Jewels
Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.
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sharky
one of the most original good guys their was never anything but a true friend "the daito to my shoto"
rest easy good buddy
https://gofund.me/eb610af1
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