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Deal.ai › Seiko
Seiko
Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch

Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch

4.1(83 ratings)

Best price now

$244.99at Nubo WatchesChecked Nov 9

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Price facts

  • Last seen at $244.99 at Nubo Watches on Nov 9.

Our take on the Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch

The Seiko 5 SNK371 is a mechanical field-style watch with a 21-jewel automatic movement, a stainless steel case and bracelet, and a day-date window at 3 o'clock. It is one of the cheapest ways into a real self-winding Seiko, and it trades the dive-watch bulk of the Seiko 5 Sports line for a slim, plain case that slips under a cuff. It suits buyers who want a no-battery everyday watch and accept that a budget automatic gains or loses seconds a day and needs a shake to start after a day off the wrist.

Best forFirst mechanical watch buyersEveryday office and casual wearSmall to medium wristsTravelers who want no battery changes
Pros
  • Genuine 21-jewel automatic movement with day and date
  • Slim stainless steel case wears easily under a shirt cuff
  • Stainless steel bracelet included
  • Simple, legible dial with no clutter
  • Long-running Seiko 5 line with easy servicing
Cons
  • No hacking and no hand-winding on this movement
  • Accuracy drifts by seconds a day, not quartz-tight
  • No sapphire crystal and modest water resistance
  • Bracelet and clasp feel basic for the price
  • Small crown is fiddly to set

Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch prices at every store

  • Nubo WatchesNew

    In stockReturn policy

    $244.99Checked Nov 9
    Visit Nubo Watches

What reviewers say

  • 4.1 / 583 ratings

Owners rate it around 4 out of 5 and treat it as an honest entry-level automatic. They like the classic look, the day-date and the fact that it keeps running without a battery, while noting it loses time and feels light on the wrist.

What people mention
  • AccuracyMixedOwners say it drifts by several seconds a day, fine for casual wear but not for precise timekeeping.
  • BuildMixedThe steel case is solid, but the bracelet and clasp are described as light and rattly.
  • MovementPraisedBuyers like having a genuine self-winding Seiko movement that never needs a battery.
  • SizePraisedThe slim case is called comfortable and easy to wear under a cuff.
  • CrystalCriticisedThe mineral crystal picks up scratches with regular use, according to owners.
  • SettingCriticisedThe small crown makes setting the day and date awkward, reviewers say.

About the Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch

The Seiko 5 Automatic SNK371K1 is a men's analog watch with a 21-jewel automatic self-winding movement. It has a stainless steel case and bracelet.

The display shows the day and date. The design is minimal and classic.

Brand
Seiko
Model
Seiko 5 Automatic SNK371K1
Gender
Men's
Movement
Automatic self-winding, 21 jewels
Display
Analog, with day and date
Case and bracelet
Stainless steel
Color
Blue
Weight
500 g

Questions and answers

Does the SNK371 wind itself?
Yes. It is a self-winding automatic, powered by wrist movement. It has no hand-winding, so after a day off the wrist you shake it to restart it.
Does it have a hacking seconds hand?
No. The seconds hand keeps running while you set the time, so you set it a minute ahead and wait.
How accurate is it?
Seiko rates this movement within roughly -20 to +40 seconds a day. Real-world owners often see closer to 10 to 20 seconds a day.
Is it safe for swimming?
No. It has only modest water resistance, enough for rain and handwashing. Keep it off for swimming and showers.
What is in the box?
The watch on its stainless steel bracelet, with tags and paperwork. It ships brand new in box.
How does it compare with the Seiko 5 Sports SRPD?
The SNK371 is smaller and slimmer with a plain field dial. The SRPD line is bulkier, has a rotating bezel and better water resistance.
Where is the Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch cheapest?
At Nubo Watches, for $244.99, as of our latest check.
What do buyers say about the Seiko 5 Automatic 21 Jewels SNK371 SNK371K1 SNK371K Men's Watch?
Rated 4.1 out of 5 from 83 ratings.

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