It applies to the vintage Seiko-s as much as the most recent of releases; from the venerable Seiko 5 to the elegant and sombre Grand Seiko. And to everything that are in between. So I thought of answering them once and for all. This also reveals the history or significance of that particular Seiko watch. Thus, you gain the knowledge and also, the power to choose and bargain, in its real sense, especially when you are buying a Seiko from the new, old stocks or models that have been discontinued.
These, ideally should come at a lower price than what they were made available first; knowing the significance of the numbers at the backside shall help you obtain the item at a more reasonable and realistic price. A Seiko with a solid case-back shall bear the 6-digit number etched in a straight line; for a transparent case-back e. These types are easier to miss, so you need a pair of keen eyes. A higher end Seiko e.
However, in case of the mid-to-late s Seiko-s, the serials are 7 digits long. For Limited Edition models, there remains a unique, numbering sequence; to be more precise, set of three numbers each, separated with an oblique. Deciphering is as follows:. The first digit Denotes the year of manufacture; not the decade.
So, 1 could be either or or The 5L14 is a simple 3-jeweled, quartz movement with no calendar or second hand its sister 5L15 caliber has three hands though. I have a sieko 7ta39 watch, it has chronograph-quartz on the face, it has the moon phase shift option ser number What you have with you is a Seiko model SEJJ , which was fully made in Japan and was possibly made on March , at the time the moonphase quartz watch fad began. Not all used 7T36 watches for sale will have uniform values as it will also depend on the exact model.
You might be interested in following the auction to the end to see how high its winning bid will be.
Just picked up a Seiko 5 with Thai numbers today. Your special Thai numeral, Seiko 5 would be more likely from September and not , because the caliber was discontinued by and was replaced by the current 7s26 caliber. It has the decision making clout to issue special editions for the local Thai horology market. Therefore a Seiko watch such as yours was likely to have been originally sourced in Thailand and not sold in other countries.
Long time no speak. Thanks for the plug. Back in my SCWF forum days, there was very little interest or none at all in Seiko Lassale watches and information on them were really scarce.
Knowing that, I will be on the lookout for a couple more unique items. This one I found at a Thai Army market. I have recently finally got back my treasured Seiko or — my first question after five months being repaired the crystal was the issue, I was told. The model number on the rear says , but on the face the number is Which is it and is this common? I have had the watch since new, which gets me to my second question.
The watch was bought by a friend for me when he was visiting Port Moresby in Is such a delay unusual or a problem? The back of my case has the wave design but it says Seiko water resist Japan A then the serial number Steel the second hand has a little round thing at the end of it. Does this ring a bell? I have a ladies seiko two tone dress watch.
The front face says automatc, 17 jewels. The back says and , water resistant, s.
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Steel basse, movement singapore. What type of battery is needed? Thanks for your question and I apologize for not being able to reply sooner. Automatic watches are purely mechanical and are not electronic. As such, they are powered by a tiny main spring that drives the watch mechanism and do not require any battery whatsoever.
Your Seiko watch is a U. By the early s, the caliber was replaced by the with the same features and is still used in Seiko 5 automatics for ladies.
SEIKO - Serial Number to Manufacture Date Decoder
Amazing you are, and I thank you! I know nothing about watches though, like what is a jewel? Does that tell you about what year mine was born? What is the best tool to open the back with? Any help that you can provide would be just awesome for me! Thank you sooooo much for this cool message board! I has 1 Seiko 5 Sports, Could you please help me to know this watch is original one or replica.
Thank you for your support in the future. This is a good question.
Seiko Production Date Calculator
Therefore your Seiko 5 Sports watch would be a genuine one. I saw half circle inside it have 3 line. I bought both a ladies Seiko solar and a gents Seiko 5 glass back watch in Dubai last week. The sales assistant wrote the serial numbers on the guarantee but did not say which is for which watch. These do not appear to be serial numbers!!! The number on the ladies watch appears to be 1N I cannot read the serial number on the gents watch as the bracelet blocks my view. I am now home in Australia and cannot return to the shop in Dubai. Can you help me determine which guarantee is for which watch?
It has a two toned metal band, a white face, a date square. I dont still have the warranty papers, but I do remember that it was water resistant to a deep depth, like ft or more. I sent it to be repaired to CSA and they tell me it is not high grade water resistant, but I have always worn it in water and it never leaked. Is it worth the cost to repair?
Dating the Seiko
I found your site very informative. Judy, about the Mickey Mouse ladies watch. You also need to know the six digit serial number, with the first two digits identifying the production year and month respectively. The numbers on the back are.. Any help would be very much appreciated by this 75 yr old Gentleman.
WatchSleuth - Seiko Date Finder
The A is a jeweled, self-winding movement that was first introduced in Your watch was made on February Date and value please. Unfortunately, the exact production date cannot be determined as Seiko does not print serial numbers for its limited edition watches. The first digit signifies the year the watch was made. This will present a problem because you may not be able to distinguish whether the watch was made in or The digits always range from 0 to 9. The second digit denotes the production month. Seiko uses for January to September.
October is represented by the number 0 zero, not the letter "O" while November and December are abbreviated to "N" and "D" respectively. The remaining 4 digits represent the production number of the watch in a sequence. It is generally believed that the first watch produced every month begins with "" and the last watch made in that month ends with "". Going by this convention, up to 10, watches of a particular model could be manufactured in one month.
The sequence number is reset for the following month. Therefore if Seiko made up to 4, pieces in February, the last watch produced will have the the sequence number For the following month of March, the first watch produced will have the sequence number instead of Seiko , production date , article , production year , serial number. Comment by Roy on February 25, 3: Comment by Quartzimodo Admin on February 29, 2: Comment by Clemualb on February 26, Hi Clemualb, The serial number that you gave me is 7 digits long, instead of six.
Comment by Quartzimodo Admin on March 1, 1: Comment by Detlev Dehn on February 28, Comment by Quartzimodo Admin on March 4, Comment by Clemualb on March 1, 2: Hi Clemualb, The reason that I asked for the serial number verification is because a 7-digit serial number applies to vintage Seiko watches made between and Comment by Quartzimodo Admin on March 1, 3: Comment by Tammy on March 3, 7: Hi Tammy, Not much is known about the hand winding Cal 11A as to when it first appeared and when it was discontinued.
Comment by Quartzimodo Admin on March 7, 5: Comment by Foxbat on March 7, Comment by Quartzimodo Admin on March 8, 1: Comment by Foxbat on March 8, 2: Hi Foxbat, I Googled for your Kinetic watch and found the reference number. Comment by Quartzimodo Admin on March 8, 2: Comment by Foxbat on March 8, 9: Comment by Quartzimodo Admin on March 9, 4: Hi again Three things: Comment by Foxbat on March 9, 7: Comment by Quartzimodo Admin on March 9, Comment by Foxbat on March 11, Comment by Foxbat on March 19, Hi Michael, Congratulations on buying both wow!
Comment by Quartzimodo Admin on March 21, 9: Comment by rick gaudry on March 21, 3: Hi Quarzimodo Thank you for your encouragement and advice. Comment by Foxbat on March 21, 8: Comment by Bob Risacher on March 22, Comment by pablo on April 3, 2: Hi Pablo, Yes, your is from April Comment by Quartzimodo Admin on April 7, 3: Pingback by Dating vintage seiko5 on April 11, 3: Comment by ganes on April 17, 9: Comment by Quartzimodo Admin on April 21, Comment by Bob on May 4, 8: Hi Bob, Sure thing.
Comment by Quartzimodo Admin on May 4, 8: Comment by Bob on May 5, 1: Hi Bob, Your Seiko is an early model dating from April Comment by Quartzimodo Admin on May 8, Comment by Todd on May 6, 8: Hi Todd, The movement and caseback number must be known before one can date a Seiko watch. Comment by Don on May 7, Comment by danny on May 9, 7: Hi Danny, What you have with you is a Seiko model SEJJ , which was fully made in Japan and was possibly made on March , at the time the moonphase quartz watch fad began.
Comment by Quartzimodo Admin on May 11, 7: Mate, Just picked up a Seiko 5 with Thai numbers today.
Comment by Nongbrown on May 10, Hi Nongbrown, Your special Thai numeral, Seiko 5 would be more likely from September and not , because the caliber was discontinued by and was replaced by the current 7s26 caliber. Comment by Quartzimodo Admin on May 11, Comment by Paul on May 11, 8: Comment by Nongbrown on May 12, 8: Hi Quartziguru I have recently finally got back my treasured Seiko or — my first question after five months being repaired the crystal was the issue, I was told.
Comment by Foxbat on May 17, 7: Comment by rick perkinson on May 22, 1: Comment by Dave on May 30, 3: Comment by lisamarie on May 30, 8: Hi lisamarie, Thanks for your question and I apologize for not being able to reply sooner. Comment by Quartzimodo Admin on June 7, Comment by acrobot on June 1, 8: Comment by Unice on June 6, 3: Comment by justice on June 10, 3: Comment by Mongkol on June 14, 5: Sawadee, Mongkol This is a good question. Comment by Quartzimodo Admin on June 20, Comment by Valerie on June 20, 8: Comment by judy on June 20, Comment by judy on June 21, Comment by berry on June 25, 1: Comment by berry on June 26, Hi, it is very helpful for me, i can see it on my seiko chronograph 7tm10, from your table, 6m10, it means May, and watch number 10, is that right?
Comment by Rudi Aryansyah on July 8, 7: Comment by Quartzimodo Admin on July 9, 6: Comment by SteveD on July 10, Comment by Quartzimodo Admin on July 17, 8: Comment by Quartzimodo Admin on July 17, 7: Denotes the year in the decade, not absolute year.