Seiko 5 Automatic Watch - Blue - 39mm

The Seiko 5 series is renowned for being automatic, affordable, and featuring a classic design. Th...

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Product Information

Full details

The Seiko 5 Automatic (SNKE51K1) is an ideal entry-level timepiece for watch enthusiasts seeking a blend of classic aesthetics and mechanical reliability. Designed for those who appreciate the convenience of an automatic movement without the need for batteries, this 39mm model offers a versatile look suitable for office wear and weekend outings, though its 30m water resistance means it is better suited for light splashes rather than professional diving or heavy swimming.

All features

Dial Size39mm
ColourBlue
Series5
Model Part NumberSNKE51K1
BrandSeiko

Extended Product Information

FAQs

Does this watch require batteries?

No, this is a mechanical automatic watch that is powered by the kinetic energy of your wrist movement.

Can I wear this watch while swimming?

No, the watch has 30m water resistance, which is intended for splashes only. It should not be submerged in water.

What is Hardlex crystal?

Hardlex is Seiko's proprietary mineral glass that is hardened to provide greater scratch and impact resistance than standard glass.

How long does the power reserve last?

The watch features approximately 41 hours of power reserve when fully wound.

Is the watch band adjustable?

Yes, like most standard metal link bracelets, you can remove links to achieve the perfect fit for your wrist size.

Troubleshooting

The watch stopped running.

Gently shake the watch side-to-side for about 30 seconds to initiate the automatic winding mechanism.

The date changes at noon instead of midnight.

Pull the crown to the time-setting position and advance the hands 12 hours.

Pros and Cons

Pros

  • Reliable, in-house automatic movement
  • Versatile 39mm case size suitable for most wrists
  • Classic, professional aesthetic
  • Excellent value for an automatic timepiece

Cons

  • Limited 30m water resistance
  • Hardlex crystal can be scratched more easily than sapphire
  • Non-hacking movement (seconds hand does not stop when setting time)

Setup, Compatibility & Care

To set the time and date: pull the crown out to the first click to adjust the day/date, and pull it to the second click to adjust the hour and minute hands.

Care instructions:

  • Avoid magnetic fields: Strong magnets can affect the accuracy of mechanical movements.
  • Regular cleaning: Wipe the case and crystal with a soft, microfiber cloth to remove oils and dust.
  • Storage: If you are not wearing the watch for more than two days, you may need to give it a slight shake or manually wind it to restart the mechanism.