Bridging the iconic alpine exploration heritage of the 1959 Laurel Alpinist with contemporary dual-time travel functionality, the Seiko Prospex 39.5mm represents the ultimate evolution of Seiko’s legendary adventure series. Sculpted in surgical-grade 316L stainless steel fortified with a DiaShield super-hard coating, this field timepiece showcases an iconic sunray forest green dial highlighted by warm gold-toned cathedral hands, wedge indices, an engraved 24-hour steel GMT bezel, and a high-visibility red-tipped 24-hour GMT hand. Driven by the advanced in-house Seiko Calibre 6R54 automatic movement delivering an extended 3-day (72-hour) power reserve, a curved sapphire crystal, an internal rotating compass ring operated by a dedicated 4 o'clock crown, and expedition-grade 200-metre water resistance, it is paired with an authentic dark brown calfskin leather strap with a deployment clasp for effortless worldwide travel and rugged trail exploration.
Key Highlights
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Advanced In-House Seiko Calibre 6R54 GMT Engine: Precision 24-jewel self-winding mechanical movement beating at 21,600 vibrations per hour, offering an extended 72-hour (3-day) power reserve, manual hand-winding, and second-hand hacking (stop-seconds).
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Dual Time Zone (GMT) Tracking: Features an independently adjustable red-tipped 24-hour GMT hand paired with an engraved 24-hour steel outer bezel for tracking two time zones simultaneously.
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Signature Alpinist Sunray Green Dial: Iconic deep forest green dial face accented by gold-toned faceted indices and heritage-inspired numerals.
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Internal Rotating Compass Ring: Bi-directional internal azimuth bezel operated via an independent secondary crown at 4 o'clock for field navigation and orientation.
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DiaShield Super-Hard Coating: Surgical-grade 316L stainless steel case treated with Seiko’s proprietary surface-hardening technology to resist scratches and abrasions.
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Curved Anti-Reflective Sapphire Crystal: Ultra-hard, scratch-resistant sapphire crystal treated with an inner anti-reflective coating for distortion-free legibility in glaring sunlight.
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Expedition-Grade 200-Metre Water Resistance: Pressure rated for 20 bar (200 m / 660 ft) with a secure screw-down crown, making it safe for swimming, surface water sports, and extreme weather conditions.
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Genuine Calfskin Leather Strap: Supple dark brown cow leather strap fitted with a three-fold deployment clasp with push-button release.
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Transparent Exhibition Case Back: See-through display back showcasing the decorated mechanical movement and oscillating winding rotor.
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Official Seiko 3-Year Manufacturer Warranty: Fully covered nationwide and internationally under Seiko’s official brand guarantee.
Design & Craftsmanship
The Alpinist Legacy Meets Mechanical GMT Travel
First introduced in 1959 to serve Japan’s Yama-otoko (mountain men) through treacherous wilderness terrains, the Alpinist line has become one of Seiko’s most celebrated tool watches. Reference HBC007J1 elevates this historic lineage by integrating a mechanical GMT complication into the iconic 39.50 mm case architecture. With a compact 46.40 mm lug-to-lug span and curved lug ergonomics, the watch maintains balanced, comfortable wear whether navigating mountain ascents or international airports.
Sunray Green Dial & 24-Hour Bezel Legibility
The dial captures the visual depth of alpine evergreen forests, finished with a fine radial sunburst grain that shifts under natural light. Polished gold-toned cathedral hands and faceted indices provide warmth and contrast, while high-grade Seiko LumiBrite ensures clear low-light reading. Encircling the dial is an internal compass chapter ring controlled by the crown at 4 o'clock, complemented on the exterior by an engraved radial-brushed 24-hour steel bezel.
In-House 3-Day Calibre 6R54 & Leather Comfort
Beneath the sapphire exhibition case back beats the in-house Seiko Calibre 6R54. With its 72-hour power reserve, the watch remains fully powered and ready across a long three-day weekend without needing winding. The watch is paired with a durable dark brown leather strap secured by a stainless steel three-fold deployment clasp, preventing accidental drops while putting the watch on or taking it off.
5 Reasons why you should buy watches from Zimson – Since 1948 , Celebrating 75 years
- Zimson is the authorised retailer for Seiko in India
- Zimson deals and sells only authentic watches and all the watches will be furnished with an invoice , brand warranty and brand packaging .
- Zimson is in the business of watch retailing since 1948
- Zimson has a strong after-sales service back up with state of art watch servicing facilities
- Zimson has gained the trust of over million customers throughout these years from our online www.zimsonwatches.com and offline stores present in Bangalore , Chennai , Kochi , Coimbatore , Salem , Madurai , Trichy and Pondicherry .
5 Frequently asked questions from our shoppers:
Are the watches sold at Zimsonwatches.com authentic ?
Ans: Yes , all the watches sold online at zimsonwatches.com and offline stores are 100% authentic and genuine .
Will the warranty be active if I buy online ?
Ans: Yes , all the watches come with brand warranty which can be from 1 yr to 7 years , depending on the brand which is ordered .
How soon can I get my watch once order placed ?
Ans: Once the order is confirmed , order will be processed within 24 hours and despatched within 48 hours and should reach the respective location in 2-3 working days from the time of despatch .
Which courier partner will be used to send the watch ?
Ans: Bluedart , DTDC Plus , Shiprocket .
Can I place order online and collect offline ?
Ans: Yes! One can place the order online and collect his or her watch offline at the desired store , prior information needs to be given so we can facilitate this .