I have the C (Kuala Lumpur) saying "For retailer Sincere. No engraved LE numbers but came with LE certificate. Lange confirmed 25 were made (2006)" and the B (Singapore RG/black dial) saying "For retailer Sincere. No engraved LE numbers but came with LE certificate. Lange confirmed 30 were made (2006)." See http://goo.gl/vWFC7Q. I recall that I was very confused about how many of each of these were made -- 25 vs. 30 -- and finally got confirmation on those numbers.