Jump to content

Recommended Posts

Posted

I bought a 1975 Seiko automatic with a really nice emerald green and gold dial, and the entire watch was so sticky with old oil that I almost wonder if whoever serviced it last just dunked it in oil to try to get it working. I thought at first that the hairspring was kinked, but removing the balance and a close inspection under the microscope revealed that it was just caked with old sticky oil, and most of the coils were sticking to each other.

I tried cleaning it in lighter fluid three times before I ultimately gave up and ordered some L&R 556 fluid and an ultrasonic cleaner. With the movement given an actual proper cleaning, the balance swung free and clear and I had high hopes that I would get a usable watch in the end. On the plus side, I have an ultrasonic cleaner now, and it made cleaning up the watch case much easier.

The crystal was completely destroyed so I had to source a new one along with a new band, but the dial only had a few spots where oil seemed to have seeped through from behind. I didn't want to touch it much, but was able to gently dab up most of it with some rodico. Unfortunately there was one spot where a small drop of oil had gotten under the clear coat and destroyed the paint underneath. As soon as I touched that part it all came away leaving a spot of bare metal. The rest of the watch looks good enough though that I can ignore this small blemish, and with everything cleaned up and a bit of regulating it's running really nicely.

20220911_165313.thumb.jpg.0156387757efc150b7e3f7af5dcba37b.jpg20220912_220914.thumb.jpg.ba86634a039419467fcd5052d334f59f.jpg

Here are a couple of shots I took for reference before the cleaning (didn't take any of the sticky balance, sorry)

20220817_223417.thumb.jpg.1bf6b8aef771a54929fddf28a169ddaa.jpg20220817_224437.thumb.jpg.ff5bf18142a074a1d5def1ecb805b3a1.jpg20220817_232732.thumb.jpg.9691a3deee5bb2675d26c1b65a0ba619.jpg

s-l1600.thumb.jpg.c8e5d55d7ff66b1c507c0b268fe89fa8.jpg

  • Like 7

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Depends what sizes of watches you mostly service . If you were to say pocket watches then you might benefit by wholly replacing the 9010 for 9020. As a rough guide hp500 is twice the viscosity of 9020 which is twice the viscosity of 9010 at 20°c.  So hp500 would give you a more mid-range oil between thin 9010 and HP1300, but as it happens hp750 is more mid- range than hp500, but is that more or less useful when oiling a train of wheels. After the barrel arbor the jump down in pivot size is around half, then after the centre wheel maybe more than half until the escapement. And pivot size isn't especially a deciding factor, as the torque and speed of a pivot would be more relevant when thinking about which oil to choose. So 750 might only be useful on a centre wheel and nothing else, and 500 might be better than 1300 for oiling the centre wheel but still comprises the rest of the train, where 9020 would be ok for the train but too thin for the centre wheel, leaving only 1300 for the oiling of it. You see the problem we're having here. What can be ok for one thing is less ok for another in a different way, damping down power compared to oil spread.  Maybe mixing a drop from two opposite range viscosity synthetic oils will give you some approximate thickness oil in-between . You want a short answer now,  I tnink I'd go with the 9020. Now be prepared for a whole host of different answers.
    • So, working on watches and your karma at the same time: win-win situation! 
    • @SteveF ,  Go on to Dr ranfft website,  Enter keywords Omega 26.5T3  ranfft .  There Dr ranfft  has listed all related calibers to this family, all which beat the same frequency,  any balance complete of this family fit your watch. This would only expenad your choice of balance complete.  Recolleting your hairspring is easy, but matching it with a balance of the family is challanging. Regs        
    • Yes, it looks much better, but at this point the main thing is to make the spring in one plain. so picture from side will show this better. Now it is seen that #1 bending is needed, which is normal.
×
×
  • Create New...