I have stopped by Annandale Watch and Clock several times and once brought a couple Omega 565 watches there for an estimate. The owner seems knowledgable and like he would be reliable. He’s very pleasant to speak with. They have an Omega parts account.
I have had most of my services done by 24 Hour Watch and Clock Repair in McLean, and I find the work has always been excellent and reasonably priced for the area.
There is another local service called Timepiece Repair (dot com) who I cannot recommend based on my experiences.
Lastly, I stop by Arlington Watch Works occasionally and have never been made to feel welcome or like I would be valued as a customer, so I haven’t really considered them as an option for servicing. I know other people who have had similar interactions, so hopefully the customer service isn’t just related to me being some sort of jerk.
On another note I feel like I regularly see OF members write advice along the lines of “don’t forget to factor in a service at $200 - $300”, but that doesn’t seem to be our reality in the DMV. I’ve been to any shop I can find, several not listed above, and vintage Omega usually gets quoted $600 and up for a 3 hand movement. Those ongoing costs have made me rethink how I approach collecting and I currently aim to get the number of watches in my collection down to where my annual servicing costs take a smaller bite of my hobby funds. I’ve already got several vintage watches in the service queue and several that were last serviced in 2018 coming due, not to mention a handful of modern watches that aren’t far out from needing a clean, oil, and adjustment. So if anyone knows of watchmakers who are doing quality work that is more affordable than what I’ve outlined above, I’d love to check them out.
Looking forward to input from others as well.