My first Gruens. Precision 510 and N510R movements.

[ManSkirtBrew]

Apparently it's James Bond's choice of watch!

Picked up this pair at an antique/estate sort of shop near me. The owner asked what I was looking for, and when I said wristwatches he pulled out several Ziploc bags full and let me dig through them. I picked up this pair for a nice price.

One case is in pretty rough shape, the other looks fairly good. Both movements seem reasonably clean, and the balances swing easily when I wiggle the watches. Interesting that one is shock protected and the other isn't.

I'll post more when I get around to working on them, but for now:

 

A couple more inside the backs. Looks like service marks in one from 78 and 88.

[ManSkirtBrew]

Finally getting these guys in the repair rotation.

I'm starting with the N510R, since it's shock protected and will be less prone to damage on my clumsy wrist

Dial side

Trying to keep track of the different bridge screws. One is missing, and I don't want to steal it from the other 510. Maybe I'll find a donor movement, since I need a stem or two anyway.

 

Left-hand wound mainspring! Don't forget that when putting it back...

 

All ready for a bath

[rjenkinsgb]

Snap!

I recently finished my Gruen 510 movement - though the case for mine is in a rather sad state; I'm going to try re-plating it (in nickel, it's not a gold one).

 

Re. the screws, I got a few of the one gram mixed batches from ebay. I've only needed a couple of screws for things so far, both rare, minuscule types - but both in the mix, after enough time sorting through them! The ones such as normal bridge screws are quite common in those lots.

 

[ManSkirtBrew]

Lubed up, back together (minus the one screw), and I'd say not a bad result! Going to give it a day or two to run in while I clean up the case and regulate it again, but off to a good start.

[ManSkirtBrew]

Still haven't gotten around to getting stems or screws, but I did make my first attempt at polishing a case. I just used a soft mop and rouge to reduce my odds of ruining them, and I think they came up pretty nice. Also gave the crystals a polish on the same wheel while I was at it. They were both very badly scratched up.

The one on the left is fairly beat up, but it'll still make for a decent presentation.

[GuyMontag]

I have some Gruen 510's in my donor pile if you need parts.

[ManSkirtBrew]

Just missed it! I have a donor movement on its way. But thank you for the offer--I'll let you know if I need anything else.

[ManSkirtBrew]

Donor movement showed up, so I stole the bridge screw from it. Which made me sad, because it's in such nice shape! It seems a shame. Maybe I'll find a use for it one of these days.

Unfortunately, the stem is for a different style of case and is much too short.

Fortunately, I ordered a brand new stem from McCaw Company. Unfortunately, the crown on the donor movement is thoroughly stripped out (it unscrewed in a shower of brass) so i just put the old stem back in for now until I source a new crown. As you can see, it's just a little too long for this case.

Overall I'm super pleased. I didn't think I'd like the bracelet, and even that is growing on me.

 

Anyone have a favorite crown assortment?

[ManSkirtBrew]

Finally getting back to this project! I sourced a new stem and branded crown. Predictably, I promptly cut the stem too short. I bought a new one, but thought I'd try shimming it out a bit first, which seemed to work just fine.

The bracelet has a neat clasp I've never seen before.