Seiko’s expertise in diver’s watches is celebrated in the new Prospex collection

Six new Prospex creations honor two landmark Seiko Diver’s watches.

Since 1965, Seiko has continuously pushed back the boundaries in diver’s watch technology. Today, two landmarks in this illustrious history are honored in new Prospex creations. In 1968, Seiko announced Japan’s first hi-beat diver’s and, ten years later, the world’s first quartz saturation diver’s watch was created. Now, these two important watches are remembered in commemorative creations that bring the latest in Seiko’s high technology watchmaking to those who work in and enjoy the underwater world.

The 1968 Automatic Diver’s Re-creation Limited Edition

In 1968, just three years after Seiko’s first diver’s watch was made, Seiko’s engineers raised the bar with a hi-beat diver’s watch with 300 meter water resistance that was one of the foundation stones on which Seiko’s future diver’s watch development was based. It had a 10-beat high precision automatic caliber, a one-piece structure, screw-down protection crown and unidirectional rotating bezel.

The 1968 original was for air diving while this new re-creation is specified for saturation diving. Like the original, it features a one piece case construction and a flat case back. It incorporates Caliber 8L55 which was specially designed for diver’s use and is made by Seiko’s skilled craftsmen and women in the Shizukuishi Watch Studio in Morioka in the north of Japan. Every detail is of the highest quality; Zaratsu polishing gives the lug sharpness and beauty, a dual curved sapphire crystal ensures high legibility and the strap is made of the latest high strength silicone. The markers have polished edges and those at 12, 6 and 9 are also different in design to ensure that time is read without error even 300 meters down.

The diving paradise of Yakushima inspires a second commemorative version

The same professional specifications are also to be found in a second new creation that commemorates the 1968 diver’s watch. Its signature feature is the deep green color of the dial and bezel. This rich shade of green reflects the lush tones of the ancient cedar trees on the island of Yakushima at the southern end of the Japanese archipelago. As well as being a World Natural Heritage Site because of its forests, Yakushima is a much loved destination for the diving community, thanks to its crystal clear waters, coral reefs and abundant marine life. Durability and strength are the watchwords; the zirconia ceramic bezel is highty resistant to scratches and shocks, the stainless steel case has a super-hard coating and the sapphire crystal has an anti-reflective coating both inside and out. The 5, 10, 15 and 20 minute markers on the bezel are painted with a specially powerful Lumibrite to increase the legibility of the rotating bezel and, thereby, the diver’s safety. In addition to the steel bracelet, a high strength silicone strap also accompanies the watch.

A modern re-interpretation of the 1968 automatic diver’s

Two other new Prospex watches commemorate the 1968 original. They echo its design but are executed in a modern style, with a thinner bezel and more contemporary hands. One is all stainless steel while the other features a silicone strap. Both are 200 meter water resistant and incorporate the 6R15 caliber which gives the case a slim profile.

A re-creation of the world’s first quartz saturation diver’s watch, 1978

To commemorate the 40th anniversary of Seiko’s invention of the world’s first professional quartz diver’s watch, this landmark timepiece is faithfully re-created in design but re-invented with Seiko’s latest technology and materials. The case construction and dial layout are loyal to the original, as are the unique hour markers and the crown, while the water resistance has been increased to 1,000m. The outer case material is zirconia ceramic which is seven times harder than steel protecting the case from shock. It features all the innovations that Seiko brought to diver’s watches in the 1970’s, including the double layer construction with one piece inner case, the L-shaped gasket for helium resistance and the accordion-style strap. This new commemorative version is offered with a high-strength silicone strap for enhanced wearability both outside a wetsuit and directly on the wrist.

Cermet. The perfect material for a professional diver’s watch

The same high specifications are all available in this commemorative edition of the 1978 original. It differs only in the use of Cermet for the outer case. This material is eight times harder than steel so offers an even higher level of shock protection but also allows the creation of a unique metallic finish. It is presented in a violet gold tone, inspired by the magical light that plays over the ocean at sunset.

• A Cermet is a composite material composed of ceramic and metal materials. It has all the hardness, abrasion resistance and heat resistance of ceramics as well as the toughness typically associated with metal.

The 1968 Automatic Diver’s Re-creation Limited Edition: SLA025

Caliber 8L55
  Driving system: Automatic
  Vibrations: 36,000 vibrations per hour (10 beats per second)
  Power reserve: 55 hours
  Number of jewels: 37

Specifications
  Stainless steel case with super-hard coating
  Dual curved sapphire crystal with anti-reflective coating
  Screw-down crown
  Water resistance: 300m saturation diver’s
  Magnetic resistance: 4,800 A/m
  Diameter: 44.8 mm, Thickness: 15.7 mm
  Silicone strap

Approximate recommended retail price in Europe: 5,500 Euro
Limited Edition of 1,500

The 1968 Automatic Diver’s Commemorative Limited Edition: SLA019

aliber 8L35
  Driving system: Automatic
  Vibrations: 28,800 vibrations per hour (8 beats per second)
  Power reserve: 50 hours
  Number of jewels: 26

Specifications
  Stainless steel case and bracelet with super-hard coating
  Sapphire crystal with anti-reflective coating
  Zirconia ceramic bezel
  Screw-down crown
  Water resistance: 300m saturation diver’s
  Magnetic resistance: 4,800 A/m
  Diameter: 44.3 mm, Thickness: 15.4 mm
  Stainless steel bracelet with three-fold clasp with push button release,
  secure lock and slide adjuster
  A silicone strap is attached.

Approximate recommended retail price in Europe: 3,200 Euro
Limited Edition of 1,968

The 1968 Automatic Diver’s Modern Re-interpretation: SPB077, 079

Caliber 6R15
  Driving system: Automatic
  Vibrations: 21,600 vibrations per hour (6 beats per second)
  Power reserve: 50 hours
  Number of jewels: 23

Specifications
  Stainless steel case with super-hard coating
  Sapphire crystal with anti-reflective coating
  Screw case back. Screw-down crown
  Diameter: 44.0 mm, Thickness: 13.1 mm
  Water resistance: 200m diver’s
  Magnetic resistance: 4,800 A/m
  Stainless steel bracelet with super-hard coating
  with three-fold clasp with push button release,
  secure lock and extender (SPB077)
  Silicone strap (SPB079)

Approximate recommended retail price in Europe: 1,100 Euro (SPB077) / 900 Euro (SPB079)

The 1978 Quartz Saturation Diver’s Re-creation Limited Edition: S23626
The 1978 Quartz Saturation Diver’s Commemorative Limited Edition: S23627

Caliber 7C46
  Accuracy: +/- 15 seconds per month (between 5°C and 35°C)

Specifications
  Titanium inner case with gold color coating (S23626)
  Zirconia ceramic outer protector (S23626)
  Titanium inner case with black hard-coating (S23627)
  Cermet outer protector (S23627)
  Sapphire crystal
  Screw-down crown
  Diameter: 49.4 mm, Thickness: 15.3 mm
  Water resistance: 1,000m saturation diver’s
  Magnetic resistance: 4,800 A/m
  Silicone strap

Approximate recommended retail price in Europe: 2,400 Euro (S23626) / 3,000 Euro (S23627)
Limited Edition of 1,978 (S23626) / 800 (S23627)