Seiko 5 Automatic Watch - Blue - 38mm
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Product Information
Full details
The Seiko 5 Automatic SNK357 is an ideal timepiece for entry-level watch enthusiasts and daily commuters who appreciate a blend of classic aesthetics and mechanical reliability. Its primary benefit is the dependable Caliber 7S26 movement, which removes the need for battery replacements; however, potential owners should note that as a mechanical watch, it will stop if left unworn for extended periods, requiring manual adjustment upon restarting.
All features
| Colour | Blue |
|---|---|
| Dial Size | 38mm |
| Series | Seiko 5 |
| Model Part Number | SNK357K1 |
| Brand | Seiko |
Extended Product Information
FAQs
Does this watch need a battery?
No, the Seiko 5 SNK357 is a mechanical automatic watch and is powered by the kinetic energy of your movement.
Can I manually wind this watch?
The Caliber 7S26 movement does not support manual winding; it relies entirely on the automatic rotor.
How long will the watch run if I take it off?
When fully wound, the watch typically has a power reserve of approximately 40 hours.
Is this watch waterproof?
The watch is water-resistant, suitable for splashes or rain, but should not be submerged for swimming or diving.
Can I change the bracelet?
Yes, the lugs are standard, allowing you to swap the steel bracelet for a leather or NATO strap if desired.
Troubleshooting
The watch stopped running.
Gently shake the watch side-to-side for 30-60 seconds to build up the power reserve from the mainspring.
The time is running fast or slow.
Ensure the watch has been worn consistently for 8+ hours a day. If issues persist, the movement may require regulation by a professional watchmaker.
Date is changing in the middle of the day.
The watch's internal calendar is 12 hours out of sync. Advance the time by 12 hours to correct the day/night cycle.
Pros and Cons
Pros
- Reliable and time-tested mechanical movement
- Excellent legibility with luminous markers
- Durable stainless steel construction
- Scratch-resistant Hardlex crystal
- Timeless 38mm size fits most wrists
Cons
- Requires regular wear to maintain power reserve
- Lacks hand-winding and hacking features
- Not intended for heavy-duty diving
- Bracelet may require adjustment for perfect fit
Setup, Compatibility & Care
To set the time and date on your SNK357, pull the crown out to the first click to adjust the day/date, and to the second click to set the time. Since this model does not feature 'hacking' (the second hand stopping when the crown is pulled), you can synchronize it by gently applying pressure against the time-setting direction to stop the seconds hand.
For care, wipe the watch down with a soft, lint-free cloth after exposure to sweat or moisture to maintain the luster of the stainless steel. Avoid placing the watch near strong magnetic sources, such as speakers or high-powered electronics, as these can negatively impact the accuracy of the mechanical movement.