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The majority of Seiko watches come with solid metal casebacks (stainless steel, solid gold, gold plated or titanium) and the serial numbers are also stamped in a straight line. Pictured above is a the caseback of an SKX007K Seiko dive watch.
SEIKO DIVER 7S26-0040 SKX031J SUBMARINER AUTOMATIC MEN'S WATCH SERIAL N: 911275
- C $168.01
- 26 bids
- Shipping not specified
SEIKO DIVER 7S26-0040 SKX033J SUBMARINER AUTOMATIC MEN'S WATCH SERIAL N 650041
- C $135.07
- 13 bids
- Shipping not specified
SEIKO DAY/DATE 10BAR SKX031 SUBMARINER AUTOMATIC MEN'S WATCH 7S26-0040
- C $169.33
- 31 bids
- +C $22.40 shipping
PREMIUM MOD SEIKO DIVER 7S26-0040 SKX031J AUTOMATIC MEN'S WATCH NH36 MOVEMENT
- C $657.56
- Buy It Now
- Shipping not specified
SEIKO DAY/DATE 10BAR SKX031 SUBMARINER MEN'S WATCH 7S26-0040 (SN 707532)
- C $125.19
- 24 bids
- +C $22.40 shipping
SEIKO SKX031 7S26-0040 ' Kermit / Hulk ' Submariner Modified Nice Collection
- C $329.44
- Buy It Now
- +C $46.12 shipping
SEIKO SKX031 7S26-0040 ' Submariner Batman ' Modified Nice Collection
- C $329.44
- Buy It Now
- +C $46.12 shipping
Seiko 6309-729A Automatic Men’s Turtle Black Vintage Diver Watch Original Patina
- C $191.07
- Buy It Now
- +C $29.69 shipping
Seiko 6309-729A Automatic Men’s Turtle Black Vintage Diver Watch Original Patina
- C $191.07
- Buy It Now
- +C $29.69 shipping
BEZEL INSERT FOR SEIKO SKX031 SKX033 J+K 7S26-0040 SUBMARINER 100M WATCH GREEN
- C $26.29
- Buy It Now
- +C $6.59 shipping
SEIKO 7S26-0040 SKX031 Submariner
- C $652.29
- or Best Offer
- +C $40.56 shipping
NEW BEZEL INSERT 38MM 'GREEN SUBMARINER' FITS SEIKO 10 BAR SKX031 DIVER'S WATCH
- C $27.67
- Buy It Now
- +C $4.61 shipping
SEIKO DAY/DATE 10BAR SKX033 SUBMARINER DAY/DATE MEN'S WATCH 7S26-0040, PEPSI
- C $99.82
- 15 bids
- +C $22.40 shipping
BEZEL INSERT FOR SEIKO SKX031 SKX033 J+K 7S26-0040 SUBMARINER 100M RED #1
- C $26.29
- Buy It Now
- +C $6.59 shipping
BEZEL INSERT FOR SEIKO SKX031 SKX033 J+K 7S26-0040 SUBMARINER 100M RED/BLUE #1
- C $26.29
- Buy It Now
- +C $6.59 shipping
SEIKO SKX031 7S26-0040 ' Coke ' GMT Modified Men's Watch Nice Collections
- C $329.44
- Buy It Now
- +C $46.12 shipping
BEZEL INSERT FOR SEIKO SKX031 SKX033 J+K 7S26-0040 SUBMARINER 100M WATCH BLACK
- C $26.29
- Buy It Now
- +C $6.59 shipping
SEIKO SKX031 7S26-0040 ' Coke ' GMT Modified Men's Watch Nice Collections
- C $329.44
- Buy It Now
- +C $46.12 shipping
630 / Seiko 7S26-0040 SKX 033J Diver vintage men's black Automatic winding
- C $685.22
- or Best Offer
- +C $39.53 shipping
NEW BEZEL INSERT 38MM 'SUBMARINER' FITS SEIKO 10 BAR SKX031-033 DIVER'S WATCH
- C $27.67
- Buy It Now
- +C $4.61 shipping
SEIKO DIVER 7S26-0050 SKX023J 10 BAR RESIST AUTOMATIC MEN'S WATCH S N: 0N4481
- C $47.44
- 9 bids
- Shipping not specified
SEIKO 7S26-0030 SKX013 Diver's Watch Automatic Men's Midsize All Parts Original
- C $329.44
- Buy It Now
- +C $46.12 shipping
SEIKO DIVER 7S26-0050 SKX023J 10 BAR RESIST AUTOMATIC MEN'S WATCH S N: 818659
- C $47.44
- 9 bids
- Shipping not specified
Genuine rare Seiko Diver's auto SKX033J pepsii (7s26-0040) made Japan 21 jewels
- C $305.71
- Buy It Now
- +C $21.84 shipping
SEIKO DIVER 7S26-0050 SKX023J 10 BAR RESIST AUTOMATIC MEN'S WATCH S N: 973402
- C $67.21
- 13 bids
- Shipping not specified
22mm CURVED STAINLESS STEEL OYSTER BRACELET FIT SEIKO SKX031 7S26-0040
- C $39.47
- Buy It Now
- +C $7.91 shipping
SEIKO MEN'S AUTOMATIC SCUBA 200M DIVER WATCH SKX011J Free Jubilee JAPAN MADE New
- C $566.50
- Buy It Now
- Shipping not specified
PRE-OWNED SEIKO DIVER 7S26-0050 SKX025J 10BAR AUTOMATIC MEN'S WATCH S.N 460065
- C $100.15
- 34 bids
- Shipping not specified
NEW SUBMARINER STYLE AFTERMARKET BEZEL INSERT FOR 7S26-0040 SKX031
- C $21.08
- Buy It Now
- +C $6.58 shipping
Seiko 7S26-0040 SKX 031 J Submariner Diver 41 mm Men's Automatic Watch
- C $685.22
- or Best Offer
- +C $39.53 shipping
SEIKO MEN'S AUTOMATIC SCUBA 200M DIVER WATCH SKX011J JAPAN MADE SOLID BRACELET
- C $566.50
- Buy It Now
- Shipping not specified
NEW STAINLESS MINUTE TRACK FITS SEIKO SKX031/033 (7S26-0040) DIVER'S WATCH
- C $39.53
- Buy It Now
- +C $4.61 shipping
NEW BEZEL INSERT 38MM 'COKE GMT' FITS SEIKO SKX031-33 (7S26-0040) DIVER'S WATCH
- C $30.31
- Buy It Now
- +C $4.61 shipping
SEIKO MEN 7002,6309,7S26,SKX007K2,7S26-0030 BEZEL INSERTS DIVER AUTOMATIC BLUE
- C $25.00
- or Best Offer
- +C $10.00 shipping
SEIKO MEN'S AUTOMATIC SCUBA 200M DIVER WATCH SKX011J JAPAN MADE Free Strap New
- C $592.86
- Buy It Now
- Shipping not specified
SEIKO SCUBA DIVER 7S26-0030 SKX013K2 AUTOMATIC MEN'S WATCH SERIAL NUMBER 1D0181
- C $245.10
- 38 bids
- Shipping not specified
*BRAND NEW* Seiko Men's Diver Steel Blue / Red Automatic Watch SKX175
- C $488.89
- or Best Offer
- Shipping not specified
NEW REPLACEMENT DOME GLASS SAPPHIRE CRYSTAL FOR 7S26-0040 DIVER SKX031
- C $72.48
- Buy It Now
- Shipping not specified
NEW METAL ROTATING BEZEL SUBMARINER STYLE FITS SEIKO SKX007/SKX009 DIVER'S WATCH
- C $65.89
- Buy It Now
- +C $5.27 shipping
New listing SEIKO DIVER MENS WATCH DAY & DATE AUTOMATIC BLACK 7S26-0040 SKX031J # 763794
- C $13.84
- 2 bids
- +C $39.53 shipping
SKX 031/033 7s26-0040 Modified SUBMARINER Insert Bezel, Dial, Hands Charter Ring
- C $105.42
- Buy It Now
- +C $4.61 shipping
USED VINTAGE SEIKO 7S26 0040 SKX031 WATCH DIVER CASE BACK COVER 788654 #BVT01547
- C $46.12
- Buy It Now
- +C $9.88 shipping
Seiko Men's SKX011J1 'Diver' Automatic Black Rubber Watch
- C $394.60Previous PriceC $652.29
- Buy It Now
- Shipping not specified
- C $394.60
SEIKO 7002,6309,SKX007K2,7S26-0020BEZEL INSERT FOR DIVER AUTOMATIC BLACK
- C $25.00
- or Best Offer
- +C $10.00 shipping
USED VINTAGE SEIKO 7S26 0040 SKX031 WATCH DIVER CASE BACK COVER 805224 #BVT01382
- C $46.12
- Buy It Now
- +C $9.88 shipping
USED VINTAGE SEIKO 7S26 0040 SKX031 WATCH DIVER CASE BACK COVER 776702 #BVT00823
- C $46.12
- Buy It Now
- +C $9.88 shipping
SEIKO MEN'S 7002,6309,7S26, SKX007K2 BEZEL INSERT FOR DIVER AUTOMATIC RED/BLUE
- C $25.00
- or Best Offer
- +C $10.00 shipping
633 / Seiko 7S26-0050 SKX025J diver vintage automatic winding black
- C $592.97
- or Best Offer
- +C $39.53 shipping
Seiko Rotating Watch Bezel Diver SKX007 SKX009 SKX011 SKX173 SKX175 SKXA35 Black
- C $83.20
- Buy It Now
- +C $23.92 shipping
SEIKO DIVER 7S26-0350 SKX781K1 ORANGE MONSTER AUTOMATIC MEN'S WATCH S.N: 782052
- C $198.32
- 10 bids
- Shipping not specified
Seiko Serial Number
Updated On: September 28, 2017
Seiko Watch Corporation has been designing and manufacturing quality watches since 1881. Each Seiko watch has a unique serial number that can be used to identify the specific series, model and year of the watch. Because Seiko produces a variety of designs, styles and brands, the serial number becomes the main identification tag for each product. Although the serial number may be difficult to see unless you use a light and a magnifying glass, deciphering the model number will help you identify a genuine Seiko watch.
Find the serial number. Turn the watch face-down on a microfiber cloth so the back of the watch is facing upwards. Take the magnifying glass and scan the edges and back plate for an engraved series of letters and numbers. Write down the numbers for your reference.
Look at the last four digits. The last four digits represent the model number of your Seiko watch.
Visit the Seiko website's watch finder (see References). Enter your model number in the top left-hand corner. Information will come up about your Seiko watch, such as collection, series, features, price and innovative technology used in the watch.
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Seiko Serial Number
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