I posted a bit too fast...should have added some more pointers.
The case looks to be in decent shape and not polished to the point it cuts out the sharp edges. Polishing, unless done well, reduces the value (even if done well, it still detracts from the 'original, well preserved' value). Movement service is always a consideration for vintage pieces...just like an engine in a car, the engine of a watch requires some attention to ensure proper function. Personally, I run with the 5 to 7 year rule, but that depends upon the usage...wear it daily, the interval is shorter, if it lives in the watch box for extended periods of time, the interval may be longer, but lubrication dries up over time and parts start to grind against each other...I'm not a watchmaker so I don't really know when a service is due, so I leave that part of advice to my watchmaker. Service on a vintage piece takes time, and a good bit of that time is sourcing parts which may be difficult to track down. Time + effort = $$, so consider that in your initial purchase costs...always...to be a good steward of a vintage piece, you should seriously consider servicing as total cost of ownership/stewardship. 'Vintage' means these things have lasted this long, so why not do our part to extend their lives the best we can!
Redials...this basically kills the value. Collectors are searching for well preserved ORIGINAL pieces. If the face of the dial is re-painted, that needs to be calculated in to the purchase price. I have two pieces that are redialed...I wear them, I don't care if I bump them against the corner of a masonry wall, I know they are worth only the joy of wearing them...I'll never recover what I paid, nor a fraction, for them. Keep this in mind.
As said above, if you are looking for a quality piece, take some time to explore this forum. You'll find a treasure trove of knowledge that will guide you to a wise purchasing decision. I've found that training my eye to see the obvious is not so simple. You've done the right thing on your first step...ask for help from the collective brain trust before jumping in...and be open minded and patient, it will serve you well in your journey in to vintage pieces.
Cheers!