Vanessa's Parts Insp. #3... Rotor Axle and Lower Axle Jewel..

[Tools]

If there is a weak part in the Rolex 3135 movement, it is likely the Rotor Axle. This piece provides the pivot point for the self-wind counterweight (Rotor) that rides on top of the movement and it is always in motion when the watch is worn. It extends into the reverser module bushing and rides on the Rotor Axle Jewel..

Lubrication of this item is critical for the auto-wind mechanism to function properly...

Here is where the part that we are talking about is located.......


Here is what it looks like when removed from the rotor:



The Rotor Axle is another tiny part, and although it is easy to see in these overgrown photos, it isn't much bigger than one of the dots on your Rolex dial:


Looking more closely at this part, we can see the wear and tear and why it is a good candidate for change-out at service time. A new one will not have the ridge and flat top like shown as this is where the jewel rides and provides a bearing surface.


Speaking of Jewels, here is the rotor jewel that also required replacement. You can see the damage and can easily see why the axle would no be held securely in place and allow the oscillating counter weight to wobble, hitting the top of the movement case and bridges.




Placing the two together, you can see how these fit together during use:


And, lastly, you can see how the broken and worn Rotor Axle Lower Jewel is a poor fit on an already worn axle....Both of these Rotor Axles are worn beyond serviceable use.