the early years 2008/2009 likely took longer time to make the J as the artisans (I read in an article a team of 2 in the beginning) needed to get familiar with the production run (I heard a week for a dial on average - so 50 pieces a year). Later on I think another 2 people team joined in. My range is 800 to 1,200. No matter the production number, it is a great reference to collect and wear.