Seiko 5 Automatic Watch - Black
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Product Information
Full details
The Seiko 5 Automatic is designed for watch enthusiasts and professionals seeking a reliable, mechanical timepiece that balances everyday durability with understated style. Its key benefit is the robust, battery-free 21-jewel automatic movement that powers itself through natural wrist motion, though users should note that the watch requires daily wear or a watch winder to remain accurate, as it does not hold a charge like a quartz movement.
All features
| Colour | Black |
|---|---|
| Series | Seiko 5 |
| Model Part Number | SNKM87K1 |
| Brand | Seiko |
Extended Product Information
FAQs
Does this watch require a battery?
No, the Seiko 5 is a mechanical automatic watch that runs entirely on kinetic energy from your movement.
How long will the watch stay running if I take it off?
When fully wound, the power reserve typically lasts around 40 hours.
Can I wear this while swimming?
While the watch is water-resistant, it is generally recommended to avoid submerging it unless explicitly rated for diving.
Why is my watch gaining or losing a few seconds a day?
Mechanical watches are subject to minor deviations based on activity levels, temperature, and position; this is normal for automatic movements.
How often should it be serviced?
It is recommended to have the movement inspected and lubricated by a professional watchmaker every 3 to 5 years.
Troubleshooting
Watch stopped running after sitting on a desk
Gently shake the watch side-to-side for 30 seconds to initiate the automatic rotor, then set the time.
The date is changing at noon instead of midnight
Advance the time by 12 hours so the movement recognizes the correct AM/PM cycle.
Pros and Cons
Pros
- Battery-free operation through automatic movement
- Versatile design suitable for diverse occasions
- High build quality and long-term durability
- Reliable 21-jewel precision engineering
Cons
- Requires regular wear to stay powered
- Mechanical movements are less accurate than quartz
- No manual wind option on certain movements
Setup, Compatibility & Care
To set the time, gently pull the crown out to the second click and rotate to adjust the hands. To set the date, pull the crown to the first click. Ensure the crown is pushed all the way back in after adjustments to maintain water resistance. For care, avoid exposure to strong magnetic fields, such as those near large speakers or industrial equipment, as they can interfere with the hairspring's accuracy. Periodically wipe the watch with a soft, lint-free cloth to remove sweat and oils from the case.