Try to fix a rusted Longines L647.4
Тәжірибелік нұсқаулар және стиль
Hi, I'm trying to fix a vintage Longines wristwatch in this video. I found it in the junk parts box at a local second-hand shop. It was about $20. Do you think it is worth the price?
This is the first time working on a Longines watch. This movement is very high quality and it was fun to work on, even though it was rusted.
Thank you for watching the video. I hope you liked this video. If so, please like and subscribe to my channel!
Пікірлер: 7
Very nice job. Did you check the accuracy with a timegrapher? Did you inspect the condition of the pivots of the wheels? These may have been damaged by the corrosion. on a side note, I wouldn't have touched the dial, but that's just me.
@vintagewatchtinkerer
Жыл бұрын
Thank you for your comments and I subscribed to your channel to learn from you. Surprisingly the accuracy was not so bad. It is about +5 sec, the error is around 0.4 ms, and the amplitude is around 290 degrees in all positions. The corrosion were only on the surface.
@onlyvintagewatches
Жыл бұрын
@@vintagewatchtinkerer thanks for the sub! I haven't uploaded a video since a long time, personal reasons unfortunately. Quality is also not as good as yours, so they are not so "popular".
What liquid did you use to remove the corrosion? Nice job and thanks for the video.
@vintagewatchtinkerer
Жыл бұрын
I used a gem & jewelry cleaner liquid. Fortunately, the corrosion was only on the surface so I didn't need to use a rust remover that may damage the parts.
Can you kindly let me know which oil you use for various parts and jewels and which solution you use to vlean the parts. It will be very helpful. Thank you Sir.
@vintagewatchtinkerer
11 ай бұрын
Thank you for your comment. I usually use isopropyl alcohol for pre-cleaning, except for the pallet fork and balance assembly. Then I use benzene with ultrasonic cleaner for all movement parts, including the pallet fork and balance assembly. This watch had another pre-cleaning step using rust remover and jewel cleaner liquid to remove rust. I generally use only two types of oil for jewels and pivots, light viscosity and medium viscosity oil. I live in Japan and Seiko oil is the easiest to buy so I use Seiko AO-2 (light oil) and Seiko AO-3 (medium oil) but any equivalent oil will be good. The light viscosity oil is used for the balance, pallet fork, escapement, and fourth wheel. I use AO-3 for other parts, except for the setting mechanism parts that use a grease. There are many specialized oils for a specific part, but from my experience as a hobbyist, using two types of oils and a grease will be okay.