The Seiko SNK331 is a mechanical automatic watch with movement-case reference 7S26-01T0. It houses the 7S26 caliber with 21 jewels, running at 21600 bph with an accuracy of +45/-35 seconds per day. It has a 41 hours power reserve, no hand-winding and no stop seconds hand function.
![Watch](https://www.theseikoguy.com/media/watches/snk/SNK331.jpg)
Ref. | SNK331 Depending on the region, bracelet model and other features you may find this watch reference written as SNK331J, SNK331J1, SNK331J2, SNK331K, SNK331K1, SNK331K2, SNK331P, SNK331P1, SNK331P2, etc. |
Case-movement ref. | 7S26-01T0 |
Case-Dial code | 01T-04T |
Caliber | 7S26 |
Type | mechanical automatic |
Jewels | 21 |
Power reserve | 41 hours |
Hand-winding | no |
Stop seconds hand | no |
Crystal | hardlex |
Strap/Bracelet ref. | 3240AG |
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SNK297
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
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Movement: 7S26
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Power reserve: 41 hours
![SNK299](/media/watches/snk/SNK299.jpg)
SNK299
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
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Power reserve: 41 hours
![SNK301](/media/watches/snk/SNK301.jpg)
SNK301
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
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Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK303](/media/watches/snk/SNK303.jpg)
SNK303
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
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Power reserve: 41 hours
![SNK305](/media/watches/snk/SNK305.jpg)
SNK305
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
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Power reserve: 41 hours
![SNK307](/media/watches/snk/SNK307.jpg)
SNK307
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK308](/media/watches/snk/SNK308.jpg)
SNK308
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK310](/media/watches/snk/SNK310.jpg)
SNK310
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK312](/media/watches/snk/SNK312.jpg)
SNK312
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK314](/media/watches/snk/SNK314.jpg)
SNK314
Case reference: 7S26-01T0
Case-Dial code: 01T-04R
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK315](/media/watches/snk/SNK315.jpg)
SNK315
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK317](/media/watches/snk/SNK317.jpg)
SNK317
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK319](/media/watches/snk/SNK319.jpg)
SNK319
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK321](/media/watches/snk/SNK321.jpg)
SNK321
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK322](/media/watches/snk/SNK322.jpg)
SNK322
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK324](/media/watches/snk/SNK324.jpg)
SNK324
Case reference: 7S26-01T0
Case-Dial code: 01T-04S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK325](/media/watches/snk/SNK325.jpg)
SNK325
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK327](/media/watches/snk/SNK327.jpg)
SNK327
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK329](/media/watches/snk/SNK329.jpg)
SNK329
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK332](/media/watches/snk/SNK332.jpg)
SNK332
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK334](/media/watches/snk/SNK334.jpg)
SNK334
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNK336](/media/watches/snk/SNK336.jpg)
SNK336
Case reference: 7S26-01T0
Case-Dial code: 01T-04T
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNKL64](/media/watches/snk/SNKL64.jpg)
SNKL64
Case reference: 7S26-01T0
Case-Dial code: 01T-11B
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNKL66](/media/watches/snk/SNKL66.jpg)
SNKL66
Case reference: 7S26-01T0
Case-Dial code: 01T-11B
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours
![SNKL72](/media/watches/snk/SNKL72.jpg)
SNKL72
Case reference: 7S26-01T0
Case-Dial code: 01T-05S
Type: Mechanical Automatic
Movement: 7S26
Jewels: 21
Power reserve: 41 hours