Dating seiko watches calculator

Posted by / 29-Mar-2019 03:47

Dating seiko watches calculator

are the year & month you can work out quickly the watches age but is there any list for model life span because as a newby to Seiko this quick check only works if you know the decade the model is from. until I get more familiar with the styles I could be 10 years out.

Having learned that the first 2 digits of a serial No.

Cross reference the Movement number with the case number to find the time scale of when your watch was produced.

All Seiko's should have a Serial number on the case back 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 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 most Seiko serial are 6 digits long and so a serial of 86XXXX would be a watch made in April of 2008 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 ...

Hence, I will always guess the early date for movements used for more than 10 years.

The only reason I have not fixed this is because getting the "end date" for Seiko movements is even harder than getting the start dates Having learned that the first 2 digits of a serial No.

My plan is to add a similar CGI that will let SCWF members upload serial numbers and purchase decades for watches that are NOT in my list, and then crunch the numbers to get start dates for movements not on my list.A note on months since only one numberis used for the months Oct / Nov / Dec being two numbers is noted by letter if you see a Zero it is a letter O for October N= Nov D= Dec 8DXXXX would be December 2008 8OXXXX would be October 2008 It does help to know a little about movement production dates when dating watches on the street but if you have a computer handy you can always drop by these fine websites: Seiko Watch Production Date Calculator production date finder ...All Seiko's should have a Serial number on the case back 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 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 most Seiko serial are 6 digits long and so a serial of 86XXXX would be a watch made in April of 2008 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 ... Someone (on the net) offers Seiko SKX781K or "orange monster" with following description: * 7S26-0350 (so it would be: movement 7S26 & case no. Then using the calculator, found production date is August, 1996? You just have to type in your movement number, the serial number, and my program will print out the production month and year.Here is the new link: The list of start years for Seiko movements is in need of updating, so I will need your collective help in bringing the program up to date.

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My 6138-8040 is a 6N, I'm pretty sure it was neither produced in 19.

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