HiBeat
Global Moderator
SEIKO Iko Iko GDTRWS
Posts: 8,662
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Post by HiBeat on May 7, 2020 19:05:36 GMT -8
I've never seen a 6002 that came on a fishbone bracelet. I've only seen them with this H-Link style and the occasional President bracelet.Unless of course the 6139-6002 is the rare Sunrise Pogue with teal color dial. These came on the JDM SpeedTimer bracelet.
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cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
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Post by cobrajet25 on May 7, 2020 23:18:11 GMT -8
I know the hand isn't loose. It resets perfectly to 2 min every time and it pressed on beautifully in the exact incorrect position. The hammer looked fine during service but this also existed prior to service so I'll be checking it out eventually. Since I always leave it running I'm not in much of a hurry to tear it back down to investigate. What do you mean by deep interlocking of chronograph finger?
These hands are staked on at the factory. The problem is they are staked to an axle that is not round. It has flat sides on it. This is done to make sure the hand does not rotate on the axle when it snaps back to zero.
This wouldn't be an issue except the axle is not clocked in the exact same position on every center wheel when they are manufactured. So if a used chrono hand from movement A is put on movement B, the hand will not be staked in the correct position. These hands are supposed to be replaced at service...not reused or swapped from watch to watch. A new hand would come unstaked.
The solution here would probably be to remove the hand, broach the axle tube, and restake it in the proper position.
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Fergus
Needs a Life!
Posts: 2,943
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Post by Fergus on May 8, 2020 0:30:59 GMT -8
I know the hand isn't loose. It resets perfectly to 2 min every time and it pressed on beautifully in the exact incorrect position. The hammer looked fine during service but this also existed prior to service so I'll be checking it out eventually. Since I always leave it running I'm not in much of a hurry to tear it back down to investigate. What do you mean by deep interlocking of chronograph finger?
These hands are staked on at the factory. The problem is they are staked to an axle that is not round. It has flat sides on it. This is done to make sure the hand does not rotate on the axle when it snaps back to zero.
This wouldn't be an issue except the axle is not clocked in the exact same position on every center wheel when they are manufactured. So if a used chrono hand from movement A is put on movement B, the hand will not be staked in the correct position. These hands are supposed to be replaced at service...not reused or swapped from watch to watch. A new hand would come unstaked.
The solution here would probably be to remove the hand, broach the axle tube, and restake it in the proper position.
There's also a comment in the worksheet ref the centre chrono clutch bush slipping on the centre axle...recommending replacing the centre chrono wheel
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jpc3
Newb
Learning more every day
Posts: 43
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Post by jpc3 on May 8, 2020 4:36:55 GMT -8
I know the hand isn't loose. It resets perfectly to 2 min every time and it pressed on beautifully in the exact incorrect position. The hammer looked fine during service but this also existed prior to service so I'll be checking it out eventually. Since I always leave it running I'm not in much of a hurry to tear it back down to investigate. What do you mean by deep interlocking of chronograph finger?
These hands are staked on at the factory. The problem is they are staked to an axle that is not round. It has flat sides on it. This is done to make sure the hand does not rotate on the axle when it snaps back to zero.
This wouldn't be an issue except the axle is not clocked in the exact same position on every center wheel when they are manufactured. So if a used chrono hand from movement A is put on movement B, the hand will not be staked in the correct position. These hands are supposed to be replaced at service...not reused or swapped from watch to watch. A new hand would come unstaked.
The solution here would probably be to remove the hand, broach the axle tube, and restake it in the proper position.
This is the original hand. I’m leaning towards a worn hammer or [gasp] as slipped heart on the chrono wheel. It’s going to be a while till I’m motivated to open it back up to investigate. There’s a few projects ahead of it on the bench. Thank you to all of you for the advice.
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Paul
Timekeeper
Posts: 118
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Post by Paul on May 12, 2020 19:57:58 GMT -8
Just checked the relisted watch and the bid is very low with only an hour to go. I checked the sellers feedback makes for and interesting read with regards to this particular watch that sold last week, looks like the winning bidder may have seen this thread and pulled out of the purchase.
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Post by seiko2019 on May 12, 2020 23:52:49 GMT -8
Just checked the relisted watch and the bid is very low with only an hour to go. I checked the sellers feedback makes for and interesting read with regards to this particular watch that sold last week, looks like the winning bidder may have seen this thread and pulled out of the purchase. Very interesting seller feedback. Sold for the second time today at $537 USD First time was $760 USD That's a 30% drop!
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