Seiko Prospex Marine Green - GMT
Best current price£1,400.00from Ernest Jones
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Ernest JonesMen's Seiko Prospex Marine Green Gmt Bracelet Watch
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First Class WatchesSeiko SPB381J1 Prospex âMarine Greenâ Automatic Watch
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GoldsmithsProspex Divers GMT 'Marine Green' 42mm Mens Watch - 1968 Modern Re-interpretation
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Product Information
Full details
This guide is for owners of the Seiko Prospex Marine Green GMT watch, designed for those who value precision, durability, and a classic aesthetic. The watch offers GMT functionality, exceptional legibility, and robust construction, making it ideal for travel and everyday wear. A key consideration is the potential for needing professional servicing to maintain optimal performance over time.
All features
| Series | Prospex |
|---|---|
| Model Part Number | SPB381J1 |
| Brand | Seiko |
Extended Product Information
FAQs
What is the power reserve of the watch?
The watch has a power reserve of approximately 72 hours.
How water resistant is the watch?
The watch is water resistant to 200 meters, which is ISO 6425 Diver's certified.
What kind of crystal does the watch have?
The watch features scratch-resistant sapphire crystal.
How do I set the GMT hand?
The GMT hand can be set independently in one-hour increments using the crown.
What kind of movement does the watch have?
The watch is powered by the in-house Calibre 6R54 automatic movement.
Can I adjust the bracelet myself?
You can adjust the bracelet yourself by using the micro-adjustments on the clasp. Removing or adding links is best done by a qualified watchmaker.
What is Lumibrite?
Lumibrite is Seiko's proprietary luminous material that provides excellent legibility in low-light conditions.
Troubleshooting
Watch is not keeping accurate time.
The watch may need to be wound (if not worn for a while) or serviced. Check for any magnetism exposure or extreme temperatures.
GMT hand is not functioning correctly.
Ensure the crown is properly screwed down. If the problem persists, the watch may require servicing.
Fogging inside the crystal.
If there is moisture inside the watch, it should be brought to a qualified watchmaker immediately for inspection and repair.
Bracelet clasp is loose.
Ensure the clasp is properly engaged. If the problem persists, consult a watchmaker to tighten or repair the clasp.
Pros and Cons
Pros
- High-quality automatic movement with GMT function.
- Excellent legibility due to Lumibrite.
- Robust construction with water resistance to 200m.
- Stylish design with a unique green dial and bezel.
- Comfortable bracelet with secure clasp.
- Magnetic resistance for added durability.
Cons
- May require professional servicing.
- The green color might not appeal to everyone.
- The watch may be a bit thick for some wrists.
- Price point is premium, not entry level.
Setup, Compatibility & Care
Setting the Time and GMT
- Unscrew the crown and pull it out to the first position to set the date.
- Pull the crown out to the second position to adjust the time.
- Use the crown to set the GMT hand independently in one-hour increments.
- Ensure the crown is screwed down to maintain water resistance.
Bracelet Adjustment
- The bracelet can be adjusted by removing or adding links. This is best done by a qualified watchmaker.
Cleaning and Maintenance
- Clean the watch with a soft, damp cloth. Avoid harsh chemicals.
- Have the watch serviced every 3-5 years to maintain accuracy and water resistance.
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