Rolex 3035 low-ish amplitude

[Knebo]

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?

 

Thanks for any advice

 

Edited January 29 by Knebo

[Knebo]

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.