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At The Bench

Follow current watch repairs/restorations

Seiko " MonoPusher " 5717-8990 Chronograph

4/8/2019

1 Comment

 
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Well this blog was well overdue and apologies for those that follow me for such a delay, its been a mad past few months with ever increasing demands for watch repair !

So today we finally have a close up look at one of Seiko's only mono pusher vintage chronographs, if your an avid Seiko collector then no doubt this is one of the holy grail watches you would want in your collection.

The watch in general was in good condition but was in need of servicing and some cosmetic light touches, the only major drawback being that the pusher has rotten and although functional it muddies the otherwise good looks when seen up close. So lets not dilly dally and get into the meat of it >>
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Seiko 5717-8990
Missing paint from bezel and that poor pusher :(
Seiko 5717-8990
Pushers seen better days, nickel plated brass does not age well compared to stainless steel.
Seiko 5717-8990
Under a rather grubby glass sits a perfect dial and original hands
Seiko 5717-8990
The lesser seen but equally awesome Seiko 5717 calibre :)

After many emails and searching i was not successful in finding a new pusher, as with many old Seikos there simply lacks the spares available and those that do exist are hoarded by watchmakers like precious gold. The watch would have to be continued with original pusher, functional if a little flea bitten ( big fleas of course ).
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Seiko 5717-8990
Pusher apart and a little worn but can be cleaned up and rust removed.
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Casing apart and signs of rust eating into the metal are not a good thing, but this can be halted and cleaned up.
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Rust never sleeps but it can be halted if treated, the casing would need some tlc to remedy the hungry red rot
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Same issue on the case and this would also be treated to stop the hungry rust mites.

Moving on to the movement it should always be noted to take great care when removing a chronograph center hand as on some movements they can be staked on with good force and hard to remove normally, breaking a center hand is the last thing you would want. The center hand should always be supported as much as possible when lifting so as the tube can be lifted evenly and with gentle/gradual pressure, the hour & minute hands can come off after but never the other way.
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Hands removed safely and reveals a perfect dial :)
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Hammer C Clip was loosey goosey so would need to be tightened on assembly

With exception to the above  C clip the movement was other wise sound, the clip had come loose over time and use so would need tightening as spares are non existent. For those who want to see all photos feel free to browse through the gallery below. 
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Seiko 5717-8990
All cleaned and assembled with fresh lube and running very well :)
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Shiny & clean :)

With the movement done it was time to turn attention to the bezel, with so little original paint remaining the only option would be to remove whats left and start again. Patience is your friend here and taking time pays dividends if your willing to put in the effort. The depth of the numerals is very shallow so proves quite a challenge but patience and a steady hand can help :)
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Slight overflow is fine as the edging will be finished off when dry
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End result id say is worth it, the bezel looks almost new again and looking punchy
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Everything done and back together, now just some outdoor shots to really see it !

With the movement complete and the casing cleaned up the watch was ready to be fully assembled, a new glass and a very light polish ( not buff ) the watch was then fitted with an original bracelet and ready to go.
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Absolute pleasure working on this and probably never see another again, quite sad they don't make them like this anymore. The ugly pusher aside this watch i think represents what is truly great about Seiko and about watch collecting in general, simple & functional with classic styling.

This watch will be heading its way back to owner ready for selling, if your interested then pay morningtonwatches.com a visit as it is available but who knows for how long !

Seiko 1965 - Model 5717-8990 -  Morningtonwatches.com


With so much work to be done of late, writing up blogs can take up valuable time but i will try to not to leave it so late next time :)
1 Comment

Seiko Sarb - " Alpinist " Cal 6R15

9/4/2018

0 Comments

 
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Having family commitments as well as a very busy workshop sometimes it leaves me with less time than id like to add new and interesting posts to this blog, however it's been a while so here's some fresh new posts coming up to entertain you all :)

The Seiko Alpinist is a truly great little watch and certainly a popular piece whether your a collector or not, with great looks and a reliable proven mechanical history ( 7S26 onwards etc ) its certainly a winner. Almost sad now that they are no longer made or sold but if you look online your sure to find one or two crop up, even when they do you will part with a small sum for what is a great tool watch.
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An otherwise good photo spoiled by my finger print, sorry :)
Without doubt a great looking watch, nothing overly complicated just simple and practical with a few useful features thrown in. The look of the watch is somewhat of a mix between new and old, the skeleton hands add to that vintage style look and the casing shape is not too dissimilar to older styles either. With a 6R15 calibre, Seiko have built on their 7SXX/4RXX success and improved on it, manual winding, hacking seconds, rapid date, and well known reliability and timekeeping, so what more could you need :)

So how does that rotating bezel work ??
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Plastic is often looked upon now as an inferior material and although full metal gear and bezel would be nice they would add to the cost. Further to cost, metal would require some sort of lubrication to keep it turning smooth and reduce wear, fortunately some plastics have self lubricating properties so this is likely the reasoning behind plastic for the gear and bezel ( aside from cost of course ). So let's get the movement out and see the finish on that dial....
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Radial brush sunburst which changes colour slightly depending on angle.
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Very clean print finish with nice font chance for "Automatic "
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Stamped dial, no applied numerals here, saving costs again but well done so no loss here

The movement used in this watch is a great choice, whilst similar in appearance to the famous 7S26 the 6R15 does have a few extra parts and functions so requires a little more effort to service than its younger generation. Overall the movement is a well engineered marvel, take the success of the earlier design and add real usable features such as hacking and manual winding, a few extras parts and  a few simple changes and voila ! For those who want to see the full strip down view the photo gallery below >
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When the watch arrived it was running 30/60 seconds slow a day but after service it was running a absolute treat, the casing was given a light clean and the whole watch put back together ready for working life again. Having owned many many Seiko's i surprise myself for never having owned one of these, perhaps one day i will but for now returning this one to its happy owner will suffice :)

On occasion i do get a brain fart and forget to take photos after a service is finished, so this time no after shots, big apologies , will do better next time :)
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0 Comments

Seiko World Timer - Ref 6217-7000

2/10/2018

2 Comments

 
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In today's blog we take a look at a lovely vintage Seiko world timer from one of my returning customers. This model was actually in pretty good shape all things considered but there was a little work to do to bring it back to its best :) Lets crack on......
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Years of dirt and grime, ultrasonics will take care of this. The oscillating weight is loose :(
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Crystals seen better days and although it could be skimmed and polished i think new is better.
Stripping down the movement is fairly straight forward and so i won't bore you with over details and just cover the important bits :)
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Quite common with Seiko movements is this hardened black grease, this in turn wears away at the plating :(
Every once in a while you may find the oscillating weight can come apart, not just on Seiko's but other automatics as well. Most occasions its best to replace them outright, but sometimes with a little tlc you can repair them back into working order.....
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Original rivets have loosened over time making this rotor not function at its best.
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Using a staking set and punches we can re-tighten the original rivets and complete the rotor again for use. No problems here so ready to go !
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During movement service the casing is stripped down and ultrasonically cleaned prior to polishing.

With the casing being cleaned i set to work on rebuilding the movement, checking each component for damage and where needed replace parts. During assembly each small system is checked before adding the next stage, by double checking at each stage you can identify problems early on rather than having to strip it down again later.
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Movement complete and running very nicely, now to leave for 24 hours before adjusting.
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Early results show promise, once running for a few days this can then be adjusted for best accuracy and then cased up :)

With the movement complete and running nicely the case work was then the next stage, taking care not to ruin original lines a light cosmetic clean up was the order of business. As the casing was cleaning after polish we re-dial the movement and fix the hands in place, this stage we also check the hands are moving correctly.
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Hands fitted and everything is ok so time to re case the movement !
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Movement nice and snug we can fit a new gasket to keep the moisture out.
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With everything complete the watch is now ready to go home and be enjoyed once more. :)
Vintage Seikos are always a pleasure to bring back to life, this model has a most wonderful silver cloth dial mixed with contrasting black & blue print of the 24 hours zone and the orange ring denoting the cities. Overall i was very pleased with this watch, both timing and finish were really good and i was happy to send this one home :)
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If you enjoy this blog then feel free to leave a comment, also check out my youtube channel as i am planning some video restoration diaries :)

Up next..... Seiko Pogue Double Trouble & IWC UTC Automatic !
2 Comments

Seiko - Seikomatic Slimdate - Calibre 840 - 30 Jewel Automatic

11/23/2017

3 Comments

 
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Just in this past week or so was this slightly neglected Seiko Slimdate featuring a stunning 30 jewel automatic movement. Seiko collectors eyes light up when it comes to the fancy and famous pieces (Pogue, 62MAS, SKX etc ) but there are plenty of great quality pieces that are very under appreciated and certainly worth collecting.

This gem is not a customer watch but one i found at auction and it seemed in fairly good condition for a gold plated Seiko as most tend to be badly worn. The styling is simple but smart and originally this line of watch would have been intended for the businessman of the era but could easily have been worn for evening occasions as well. The watch is fitted with a high quality 30 jewel automatic movement in the form of the calibre 840 ( Suwa Large 1963-1969 ), although there were higher jewel counts available i think 30 jewels is plenty enough.

Below is a series of photos during the strip down, we can see an advanced auto winding mechanism when compared to the single stage gearing of the more modern 7S26 style movement calibres. Also visible is the indirectly driven seconds pinion as you would find on high quality Swiss watches of the same period ( or even today for that matter ). Note also a small winding gear for the watchmakers benefit in order to manually wind the movement prior to testing :)
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As is fairly typical after years of use the crown has seen better days, so this would need to be changed for something new. Finding originals can be hard work but thankfully there are a good amount of generic crowns that can work and are of equal quality.
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Not much material left here, thankfully its not manual winding :)

After some TLC and a good service the watch was finally ready and boy did it shine ! Im not a fan of gold watches but sometimes you can just admire something for what it is and this Slimdate is one of those things. Feel free to view the gallery photos >>
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I could not source an original glass for this model but luckily i did find a nice flat glass with an attractive bevelled edge to give it that extra wow factor, sadly this is harder to show in photo form than real life :)

More blogs to follow so check back soon !
3 Comments
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  • Home
  • Blog - " At the Bench "
  • YouTube
  • For Sale & Reviews
    • Omega Seamaster Cosmic 2000
    • Watches & Tools For Sale
    • Product Reviews >
      • Blu Shark Strap Review
      • Nordgreen Philosopher
      • Nove Craftsman Watch Review
      • SELHOR Diver 05 Review
      • Selhor Chronograph Rallye
  • News/Info/Websites
    • Websites/Suppliers Of Interest
    • Movement Identification
    • Dial Restorations
    • Identifying Parts
    • Movement Markings ID
    • Canon Pinion Removal Tool/s
    • Downloads
  • Contact
    • Services & Pricing
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