
An excellent event and a really interesting watch. The key to the whole trick is knowing what movement is in side and older movement like the 6309 was made in the late 70's and 80's and so a watch with 86XXXX would be April 1988 and so on. I was fortunate to be part of this event yesterday at Greenwich. This indicates the example was manufactured in May 1976 and the unique production number is 2290. 272, 318, 378, 517 MODELS, 283, 285, 302, 315 Models, 89, 559 models, 41. Adelson et al., Spatiotemporal energy models for the perception of motion. The first digit indicates the year, the following character the month and the remaining 4 digits a unique production number. The K, and I cant stress this enough, does NOT stand for Korea.The K simply means it was manufactured outside of Japan. The J as stated before means 51 assembled/manufactured in Japan.
#393424 SEIKO MODEL NUMBER SERIAL NUMBERS#
Most Seiko serial are 6 digits long and so a serial of 86XXXX would be a watch made in April of 2008 Serial Number: The serial numbers on modern Seiko models are comprised of 6 digits. Another thing I want to point out is the model can either have a J or a K in the model number. About brands not covered by search such as Grand Seiko, Credor.

The second number in the Serial is the month the watch was made if you see a 4 it will be the month of April The first contribution of this thesis is mtSet, an efficient mixed-model approach that enables genome-wide association testing between sets of genetic variants. The first number in the Serial is the last number in the year of production, and so if it is a new watch and you see an 8 it should be the year 2008
#393424 SEIKO MODEL NUMBER SERIAL NUMBER#
All Seiko's should have a Serial number on the case back A pro-Seiko forum, for modern & vintage Seiko.
