Hand hole sizes for Hamilton 978?
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So fsr as assembly, I don't think you would find 5646 different from 5606, just that GS is 36000 beater. No unknown chalange is there as long as the escapement reamins undameged. Rgda -
By MechanicMike · Posted
no, I have no alternatives and don't know of any. I've bought Mobius and that's all I have. 9010, 9104, 941, D5, 8000 and Moly-Kote. -
I've just had the wood stove door seal replaced. I was hoping not to need to do that again for a few years. In the name of science I can't say I'm not tempted. I mean how dangerous can it be? Says the man who encouraged his friend the plumber to use phosphoric acid to dislodge the solidified sodium hydroxide that had blocked the bath U bend. We did take that outside first though, and yes, adding concentrated phosphoric acid to sodium hydroxide crystals and drain sludge is as bad an idea as it sounds.. so we did it several times, laughing like delinquent school boys until the explosions of brown goop stopped. The operation was a success, but sadly the patient died (or rather, melted), and we had to replace the U bend anyway. Children, please don't try this at home. -
I don't usually fancy the yellow crystals but it seems to work with that dial... ...and you can't set fire to it unless you share video. I speak for all of us... -
For the last couple of evenings, I've been working on an Amida 15 Jewel based on the Amida 500 movement from sometime around 1950. This is a slightly odd mechanism, as it has the initial appearance of a jewelled lever arrangement, but is in fact a pin lever. The movement is well made, and pretty easy to work on. After a little swithering, I did change the crystal. It looked original, and I would probably have left it alone, but it had yellowed somewhat, but the thing that sealed its fate was the crazing that became evident if the light struck it from just the right direction. As you can see, it made a marked difference to its appearance, although some might argue that the yellowing gave it a warmer look. I'm in two minds also regarding the hands. I suspect they might polish nicely, but the nagging voice in my head is saying, they might also end up looking uneven. It does run reasonably well all things considered. It doesn't quite qualify for the 404 club, as it came in at a rather too hefty price tag of £4.99 GBP. but since I've made a few other exceptions to the rules recently, it may just get an honorary membership. There are a couple of other issue I need to address. The first is the fixed pins and rather small lug width, which measures at a rather odd 15.3mm. I'll either need to source a strap, or perhaps use this an opportunity to make a custom sized strap for it. The second issue is.. do I dare set fire to the old crystal, just to see if it is made of nitrocellulose? If you hear a loud bang and detect the smell of singed eyebrows, then you will know the answer.
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