dasher
Timekeeper
Waiting on 6:00 pm
Posts: 966 
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Post by dasher on Mar 20, 2015 8:54:13 GMT -8
Managed to fish this 7016 "Monaco" out of the 'bay yesterday. This is one of those 5-hand flyback chronos that pop up semi-often. As is my wont when fishing, this is one of those dent-and-scratch specials that I seem so attracted to. From the research I've done so far, these were made from '71 - '78 and in numerous color and style combinations. The case was either round or square, and either stainless or gold colored. This one was fairly cheap, and hopefully won't need a ton of work to get running. I'm not crazy about gold colored cases on watches, they always seem to corrode in such unsightly ways! However, for this type of movement and watch, I'll take what I can get. Seller's photos:   Any feedback from owners of this watch is appreciated. One quick question - should this chrono be "left running" in the same manner that the 6139 should be left running? Thanks for looking! Dan |
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Adrian-VTA
Global Moderator
Adelaide, South Australia
Posts: 5,327
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Post by Adrian-VTA on Mar 20, 2015 22:33:27 GMT -8
If they should be left running or not is still a topic of debate.
I like to stop them (I think they look classier stopped)
Spencer prefers to keep them running.
Mechanically, keeping them running is probably the better option. What beaks on them is the clutch spring, and when you have them stopped it keeps pressure on the clutch spring. My suspicion is that a lot of the breakages there are due to the reset spring being set too firm, so it gets pressed hard, has a lot of torque behind it and crack...goodbye charlie to the spring.
The 7 series chrono is still a column wheel chrono, but in my opinion a better design than the 61 series. There are way less parts and it does a proper split second function, in that you can press the reset button without stopping the chrono, and it will reset to zero and continue running. The column wheels seem to be more robust on the 7 series. The mechanism itself to reset is a lot better as well.
At the end of the day, it's up to you.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Mar 21, 2015 0:54:52 GMT -8
Leave chrono feature running or at least use it often. The two things that kill the chrono center wheel and clutch is either rust or if left without it engaged the clutch plates stop working correctly. What happens then is the watch will work fine with the chrono feature running but as soon as it is engaged the watch will stop. Other people say it wears the watch out quicker and even though over a long period of time this is true as long as the watch is serviced it should not do the watch any halm leaving the chrono running where as leave it switched off and it's a different story. The chrono wheels are hard to find and expensive as a rule.
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Post by croolis on Mar 22, 2015 13:48:25 GMT -8
I've had far less problematic 701x series chronographs than 613x ones, the common 6138/9 problem with inaccurate reset doesn't seem to occur - I guess it's a better design overall. I've had lots of 45 year old 701 and 613 chronographs that after all these years still work perfectly and keep very good time (a few seconds a day!) .. I wouldn't worry too much about having the chronograph running or not - how many days a year do you wear a particular watch? I normally refer to the 7016-5000 model as the 'Monaco' since it has the squarish dial and round seconds track typical of a Heuer, this one you have is more of a tonneau style. I've had 2 of these so far, the first one came from the Philippines and although in very good condition had had the gold plating brushed off revealing the silver-coloured metal beneath - this is not stainless steel (or if it is, it's stainless steel of poor quality) and regularly requires polishing as it tarnishes. THat one was stolen a few years ago.. the one I have now came from Japan and is in practically NOS condition except that it is missing the original bracelet and has a shark leather strap instead (that I quite like, incidentally).. it has a bit of corrosion under the gold plating at some points around the crystal. Cheers and enjoy what is one of my favourite Seiko chronographs  |
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Post by earthphase on Mar 22, 2015 17:20:31 GMT -8
Wait...
6139s should be left running?
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Mar 22, 2015 18:08:45 GMT -8
Wait... 6139s should be left running? Yes, since it has the vertical clutch which has to slip when the chrono is not engaged. This is the opposite of chronos like the ETA7750 which should not be left running. |
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Deleted
Deleted Member
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Post by Deleted on Mar 23, 2015 2:36:44 GMT -8
Wait... 6139s should be left running? Exactly as Pete says! Leave a spring under load in the same position for 40 years and it will take on that position rather than it's natural one. The only real problem I have with the 6139's is that chrono wheel and escape wheel pivots being worn out. The escape wheel is due to lack of lubrication aka lack of servicing. The chrono wheel fault will cost $40 for a wheel when you can find a NOS or good one that is and then a strip down so say $150 as you might as well get it serviced at the same time. The key thing here is check all the functions work with the seller, or your money back if they do not first before buying the watch in the first place. |
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dasher
Timekeeper
Waiting on 6:00 pm
Posts: 966
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Post by dasher on Mar 23, 2015 5:52:20 GMT -8
I've had far less problematic 701x series chronographs than 613x ones, the common 6138/9 problem with inaccurate reset doesn't seem to occur - I guess it's a better design overall. I've had lots of 45 year old 701 and 613 chronographs that after all these years still work perfectly and keep very good time (a few seconds a day!) .. I wouldn't worry too much about having the chronograph running or not - how many days a year do you wear a particular watch? I normally refer to the 7016-5000 model as the 'Monaco' since it has the squarish dial and round seconds track typical of a Heuer, this one you have is more of a tonneau style. I've had 2 of these so far, the first one came from the Philippines and although in very good condition had had the gold plating brushed off revealing the silver-coloured metal beneath - this is not stainless steel (or if it is, it's stainless steel of poor quality) and regularly requires polishing as it tarnishes. THat one was stolen a few years ago.. the one I have now came from Japan and is in practically NOS condition except that it is missing the original bracelet and has a shark leather strap instead (that I quite like, incidentally).. it has a bit of corrosion under the gold plating at some points around the crystal. Cheers and enjoy what is one of my favourite Seiko chronographs As always, spot on Dave - thank you for the clarification and good wishes!! Happy Hunting! Dan |
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