Prospex ‘Marinemaster’ JAMSTEC Limited Edition 1968 Heritage Reinterpretation - HBF002J1

• Limited Edition of 1000 pieces worldwide
  
• Created in collaboration with JAMSTEC (the Japan Agency for Marine-Earth Science and Technology), inspired by the construction of the ‘Mirai II;’ Japan’s first icebreaking polar research vessel.
  
• The dial expresses the oceanographic research ship’s trail through the ice; its thick transparent paint is polished to create a deep lustrous effect.
  
• Especially crafted for divers, the 8L45 calibre is a highly accurate, reliable and robust movement.
  
• 28,800 vibrations per hour (8 beats per second)
  
• Movement Type : Automatic with Manual Winding
  
• Power Reserve : 3 Days  
• BOOK NOW. Available in July 2026

Product Description :

In 1968, Seiko launched a revolutionary new innovation with the world’s first hi-beat Diver’s watch. With a case design inspired by the original 1968 piece, carrying the name ‘Marinemaster’ from Seiko’s heritage in diving watchmaking, this new re-interpretation has the same 300m water resistance.

This limited edition Diver has been created in collaboration with JAMSTEC (the Japan Agency for Marine-Earth Science and Technology), inspired by the construction of the ‘Mirai II;’ Japan’s first icebreaking polar research vessel.

The dial expresses the oceanographic research ship’s trail through the ice; its thick transparent paint is polished to create a deep lustrous effect. Under dual-curved sapphire crystal glass, the blue gradient dial has a satin-finished professional grade texture, purpose-designed to reduce light reflection for high contrast under water, optimised for diving conditions. A streamlined case, with the crown in the comfy 4 o’clock position, strong Lumibrite for legibility at the darkest depths and a unidirectional rotating bezel meet ISO Diving standards. This Air Diver features a ceramic insert bezel and a super-hard coating for increased scratch resistance.
The bracelet features a three-fold one-push sliding micro-adjustable clasp. The caseback features ‘JAMSTEC LIMITED EDITION’ and the piece’s limited edition number.

Especially crafted for divers, the 8L45 calibre is a highly accurate, reliable and robust movement. Crafted at the Shizukuishi Watch Studio in Japan’s Iwate prefecture, this calibre is accurate to +10/-5 seconds per day with a 72-hour power reserve.

Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.

Product Features :

• Gender : Men
• Movement : Automatic (+Handwinding)
• Movement Type : Automatic (+Handwinding)
  
• Calibre : 8L45
  
• Accuracy : -10/+15 seconds per day
  
• Duration :  Approx. 72 hours (3 days)
  
• Case : Stainless steel
  
• Case Size : Case Diameter : 42.60 mm
  
• Case Shape : Round
• Dial Colour : Blue
• Water Resistance : 300 m 1000ft diver's, AIR DIV
• Clasp : Three-fold clasp ＆ push button release, solid & slide adjuster
  
• Glass Type : Dual-curved sapphire crystal
• Functions : 28,800 vibrations per hour (8 beats per second),Stop second hand function,Date display
• Band Material : Stainless steel
• Band Colour : Silver
  
• Limited Edition

Manufacturer & Importer :

Country of origin : Japan
Manufacturer Details : Morioka Seiko Instruments Inc, 61-1, Itabashi, Shizukuishi-cho,Iwate-gun, Iwate 020-0596, Japan
Importer Details : Seiko Watch India Pvt Ltd, 874, Temple Vista Ground Floor, Indiranagar 1st Stage, Bangalore 560 038