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Rolex 3035 low-ish amplitude

Knebo
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Knebo Distinguished Member

Knebo

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Hi all,

I've been servicing a Rolex 3035. It was running at about 220° amplitude when I got it and oils were quite dried up. Now it's running at about 250-260°, fully wound, horizontal positions. After 24h, it goes to 195° in vertical positions (Rolex minimum is usually set at 200°. So just below the threshold). Not as high as I'd like it.

I'm confident about my cleaning and oiling (even if I "conservatively" used HP1300 for the whole train, except escape wheel with 9010). Endshake of the train is fine (it's minimal so I tested increasing it with a shim. no difference). Balance endshake is easily adjusted with a dedicated screw. I tested a few positions of the adjustment screw and as it made no difference, I went back to the original position.

Are there any particularities of this movement that I may not know about?

One thing that struck me in the manual (3035-3055-Tech.pdf) is that the centre seconds wheel sits inside a minute pinion with a plastic bushing that isn't supposed to be lubricated. I didn't. But I'm tempted to do it anyway as it seems to be an area that could potentially induce quite a bit of friction. Any thoughts/experiences?

image.png.aa40303e55486a190df62d8725546911.pngimage.png.6923a7b1917f70a2a48594929681f37b.png

 

Thanks for any advice

20250129_093317.thumb.jpg.5816504e3993a648b8abca08188e1526.jpg20250129_093334.thumb.jpg.190ebea025edad4841b2dcc172916d2d.jpg

 

Edited by Knebo
Knebo Distinguished Member

Knebo

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Not everyone at once!!! 😆

No worries. It's settled. At full wind, it was starting to run in the high 260s / low 270s (horizontal). After 24h, the lowest is 210 (vertical). Positional variation is very low (delta of 8 between all positions at full wind and after 24h). 

The lock on the pallets is on the heavy side (but not excessive). That may explain it. 

I'm calling it good. 

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