My sub-c (which is currently my only watch now) in the market for either a Glashutte Original or a JLC
The Breitlings's I used to have. Every one got stolen on a business trip :(
Both are nice watches. Subs are pretty bullet proof and tons of both were produced. Rolex used to say they had parts available for watches until they were out of production for 20 years, now I think its parts availability until a watch is out of production 30 years. The few times I sent Rolex watches in for repairs I did not need any new movement parts, just a new tube and gasket. There are lots of places/people that can service a Sub, but there will probably be parts availability for a lot longer on a 16610 since it went out of production more recently. But if you love the look of the 16800 I wouldn't let that stop me.