The difference in the 5245-6000 vs 5245-6010 is on the case, 6010 looks a bit smaller because of cut angles on the side. I was reading a bit on the history of the King Seiko and found in one of the forums... The 5246-6010 and the 5256-8010 were probably the best-conforming 52xx calibre King Seikos t
Got the 5245-6010 and it is also linen dial (a bit whiter when compared to the 5245-6000 (looking at the pictures), so i am not sure what the difference is. Will update you in a few more days when I can compare.. What is the case size for you? maybe the 6010 is a bit smaller?
I've seen 5245-6000 model--- around 3 or 4 for sale in online sites.. saw one 5246-6000 (day/date) but wasn't able to buy it. I got a 5245-6010 - i think the dial is white instead of fabric like and still looking to buy another 5245-6000. Another one in auctions but dial is not in very good conditio