December 1968 was a good month. Why? Citizen made today’s watch 🙂 This is one of my favourites, since it offers big lumed markers and main hands against a black dial, but doesn’t have an external bezel. Since I’m not a huge fan of the many look-a-like divers to be found, I do like that this one has the legibility qualities of a diver dial – it is in a large cushion case, measuring about 44 mm across, which is very comfortable to wear. The ‘Deluxe’ moniker shows it is one of the upper tier of Seven Star watches, powered by a 23 jewel 5270 movement, whilst separate day and date windows give it the ‘Custom’ name. Mine has the older style model/case number of ACSS3201, but it may also be found with the later style of case number of 4-520211. Although not on an original Citizen bracelet, I’ve used a vintage Maruman which I think suits it well:
It’s running very well, and time keeping is excellent. More info here:
Sweephand's Vintage Citizen Watch Blog 