Westclox Boyproof - Mainspring
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Cool, good luck with your 620!! Yes, 20x the price is the correct calculation drop-for-drop. Then again, I probably won't even finish my 5ml of 9504 before it's expiry date (plus 1-2 years). And with the DX, I'd probably end up throwing away 90% of the tube by the time it expires. I did also start with 2-3 pocket watches, then 2 men's watches (last one, a Vostok 2414, with a good final result; amplitude around 300°)... and now already the 625 (for a friend!) 😬. I'm very nervous about it, but also very excited, thrilled. And well, worst case, I can get a whole replacement movement for around 80 USD off eBay. -
I calc it as nearly 20x more expensive, so worth remembering when you've used the 9504 😀 I'm oiling a 620 now, in between typing. One problem with smaller (ladies) watches, is that due to the smaller part sizes, the frictional forces are relatively larger - especially on the smaller balance due to it's much lower inertia. Therefore parts have to be really clean and free from dust and dirt to get good performance. As a beginner I started on pocket watches, because they are larger and easier to start on, and that big balance is a lot easier to get swinging nicely. -
By nickelsilver · Posted
Looks a lot like an FEF 150 (Fleurier). Or a Buren 35 Actually it must be Buren, the movement side is pretty dead-on, but maybe a slightly different caliber? Ranfft doesn't have much for them in the form movements. -
Great, thanks. Lube away, I shall 😁 The difference in quantity between the DX and the 9504 don't really matter to me -- I'll still need years to finish the 5ml of 9504. But yea, even when ignoring the difference in quantity, 9504 is still more than double the price...😑
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Yes sure!! Thanks for looking at it! Here you go.
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