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Ernest Jones£1,100.00Visit shop Men's Seiko Prospex Alpinist Mechanical Gmt 39.5Mm Dial & Dark Brown Leather Strap Watch
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The Seiko Prospex Alpinist Mechanical GMT is an ideal timepiece for outdoor enthusiasts and collectors who value a blend of vintage-inspired aesthetics and modern mechanical precision. Its standout benefit is the robust 72-hour power reserve combined with a versatile GMT function for tracking multiple time zones, though potential buyers should note that its specialized compass functionality requires manual interaction and may take time to master for navigation purposes.
| Colour | Brown |
|---|---|
| Material | Leather |
| Dial Size | 40mm |
| Series | Prospex Alpinist |
| Model Part Number | HBC007J1 |
| Brand | Seiko |
It is entirely manual. It requires the wearer to rotate the crown to align the markers and use the sun to determine direction.
Yes, with 200-metre water resistance, it is suitable for swimming and recreational diving, provided the crown is screwed down tight.
General recommendation for mechanical movements is every 3-5 years to ensure oil lubrication and accuracy remain optimal.
The in-house 6R54 calibre provides an approximate 72-hour power reserve when fully wound.
Sapphire crystal is extremely hard and highly resistant to scratches compared to standard mineral glass.
Yes, the 6R54 movement includes a hacking feature, meaning the second hand stops when the crown is pulled out to the time-setting position.
The power reserve may be depleted. Manually wind the crown clockwise 20-30 times or wear the watch to engage the automatic rotor.
Ensure the GMT hand is set correctly using the first crown position. If it remains off-set, consult a professional watchmaker.
This indicates moisture ingress. Ensure the crown is fully screwed in and take the watch to a certified technician immediately to prevent movement damage.
To set the time, pull the crown to the second click and rotate to adjust the hour and minute hands. The GMT hand is adjusted when the crown is in the first click position. Always ensure the crown is fully screwed in before exposing the watch to water to maintain its 200m resistance rating. For the leather strap, avoid prolonged exposure to moisture to preserve the material. Periodically wipe the stainless steel case with a soft cloth to remove perspiration and salt buildup. As an automatic watch, it will wind itself through the natural motion of your wrist, but can also be hand-wound by turning the crown clockwise in its neutral position.
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