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SEIKO PROSPEX SBEX003

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Prospex Marine Master Professional The 1968 Commemorative Edition Automatic Hi-Beat Diver Scuba 1000M Black Dial Black Silicon Strap JAMSTEC Special Model Limited Edition from Japan Domestic Market

  • 1 year official warranty
  • Release Date : 13 November 2015
  • Automatic Movement with Manual Winding Capacity
  • Movement 8L55
  • Pure Titanium Stainless Steel Case with PVD Hard Coating
  • Titanium Stainless Steel Bracelet
  • Sapphire Crystal Glass Material with Anti-reflective Coating
  • Black Dial
  • 37 Jewels
  • Power Reserve 55 hours
  • +15 to -10 seconds per day Accuracy
  • Magnetic Resistance
  • Vibration Frequency 36,000 bph
  • Date Display
  • Screw Case Back
  • Screw-Down Crown
  • Unidirectional Rotating Titanium Bezel with Anti-reverse Spin Function
  • Stop Seconds Hand Function
  • Fold Over Clasp with Push Button Safety
  • Size H 53.3 mm x W 48.2 mm x D 19.66 mm
  • 1000 m Water Resistance suitable for Divers
  • Included Extra Seiko Rubbers Band
  • Limited Edition of 500 pcs

Description

SEIKO Prospex SBEX003 Specifications : 

Feature
Driving systemAutomatic with manual winding mechanism
Caliber Number8L55
Case materialPure titanium with PVD hard coating
Case backSolid
Glass materialSapphire crystal with anti-reflective coating on inner surface
Band typeBracelet
Band materialTitanium
Band colorSilver
Band width21 mm
ClaspFold over clasp with push safety
Dial colorBlack
HandsLuminous silver tone (hour, minute) with grey and silver tone second hand
Dial markersGrey and silver tone dots and baton indexes at 6, 9 and 12 o’clock position
Second markersMinutes markers around the outer rim
Lumi BriteHands, indexes and bezel’s triangle at 12 o’clock position
BezelUnidirectional one-way rotating black colored titanium with silver tone arabic numerals minutes markers per 10 minutes
CrownScrew down
CalendarDate display between 4 and 5 o’clock position
FunctionDate, hour, minute, second, stop second hand
Accuracy+15 to -10 seconds per day
Vibration36,000 vibrations per hour
Drive durationPower reserve: 55 hours
Magnetic reluctanceMagnetic resistance 4,800 A/m
Water resistance1000 m water resistance suitable for saturation diving
SizeHeight: 53.3 mm x Width: 48.2 mm x Diameter: 19.66 mm
Weight199 g

SEIKO Prospex SBEX003 Features : 

  • “LIMITED EDITION” engraved on the case back
  • Serial number engraved on the case back
  • One-piece structure
  • Unidirectional one-way rotating black titanium bezel
  • Screw down crown
  • Buckle deployment clasp
  • Jewels: 37 jewels
  • Stop second hand function

About Seiko Prospex Sea Diver SBEX003

From the introduction in 1965 as Japan’s first diver’s watch, the engineers never stopped to innovate. The trust this watch has gained goes beyond the borders of Japan and into the world. Because of that, Seiko facilitated the establishment of the standard for diver’s watches in International Standard Organization (ISO), and Japan Industrial Standards (JIS). As for the ISO, Seiko lobbied the organization to amend the standard to match the actual use of diver’s watches in the deep sea. In 1996, ISO6425 with annex, about diver’s watches for mixed gas diving, was issued. Moreover, Seiko’s relentless challenge and innovation have driven the company to create a model that could truly be called authentic.

Behind Seiko’s diver’s watch that has been chosen by divers world wide, there are qualified engineers who work to developed technology that the world has never seen.

First, through significant innovation, water resistance and impermeability has proven to be the finest in world class. Above all, along with functionality, using specialized material and precise detail in structure, the timepiece is made to perfection. In addition, Seiko’s determination and innovative technology resulted in many patents to preserve the company’s authenticity.

Since then, there are countless products labeled as a diver’s watch around the world but only a negligible number of these timepieces are functional in professional environments.

History of Seiko Prospex Sea Diver SBEX003

 

The start of a tradition

Seiko created Japan’s first diver’s watch in 1965.
This watch inaugurated five decades of innovation that have made Seiko diver’s watches the global standard. Seiko’s first high-beat diver’s watch, created in 1968, is an important part of this tradition.

With a 10-beat high precision automatic caliber, a one-piece structure, a mono-directional rotating bezel and screw-down protection crown, the success of this model laid the foundation for the Seiko diver’s watch development which has now, for 50 years, pushed back the frontiers of precision, durability and ease of use in watches for professional and recreational divers.

Progression of Seiko Prospex Sea Diver

Seiko Prospex Sea Diver. Antarctic Team of the Geospatial Information Authority of Japan

Earning credibility through vigorous adventures in the North and South Pole.

From 1966, the timepiece has been brought on 4 missions with the Antarctic Team of the Geospatial Information Authority of Japan. Later on, numerous adventurers and explorers have made achievements such as successfully ascending Everest gearing Seiko’s diver’s watch. After years of proving itself worthy of withstanding extreme environments, Seiko’s diver’s watch has earned its integrity.

Seiko Prospex Sea Diver. Seiko Diver WatchSeiko Prospex Sea Diver. Shinkai 2000

Exceeding any expectation of water resistance with the depth of 1062 meters.

In May of 1983, two Professional Diver’s 600 meters were mounted on Shinkai 2000, a research submersible used by JAMSTEC (Japan Agency for Marine-Earth Science and Technology). The watch was originally intended for use up to 600 meters, yet the timepiece withstood water pressure at a depth of 1062 meters. As a result, the watch’s legibility, precision, and exterior remained unscathed, continuing to strengthen its credibility.

Courtesy: JAMSTEC

 

Seiko Prospex Sea Diver. Result of saturation driving graph
Water-Resistance:Air tightness
The result of 300m saturation diving: Pressure inside the watch case for brand other brands (A, B, C) and Seiko Professional Diver’s
The vertical line shows the pressure inside the watch case and the horizontal line indicates the period of time.
After the dive, the air pressure inside the watch case gradually went up.
Seiko Professional diver’s scored the best result and verified that it is strong enough to function even at great depths.

Proving its significant impermeability.

For saturation diver’s watches, helium is a constant issue. That is to say, the gas penetrates the glass, and in some cases the difference in external and internal air pressure causes the glass cover to break. While other companies focus on methods to release Helium with an escape valve, Seiko took a different turn and developed a glass case that is practically impermeable to Helium gas. This is the creation of Seiko’s Diver’s Professional 600M. Then, in 1983, JAMSTEC conducted an impermeability test by submersing several diver’s watches under 300M saturation diving. Consequently, Seiko’s Diver’s Professional 600M proved to be up to ten times more impermeable to Helium gas compared to other companies. In short, the true diver’s watch continues to prove itself.

Courtesy: JAMSTEC

History of Seiko

The company was founded in 1881, when Kintarō Hattori opened a watch and jewerly shop called “K. Hattori” (服部時計店 Hattori Tokeiten) in the Ginza area of Tokyo, Japan. Eleven years later, in 1892, he began to produce clocks under the name Seikosha, meaning roughly “House of Exquisite Workmanship”.

The first watches produced under the Seiko brand appeared in 1924. In 1969, Seiko introduced the Astron, the world’s first production quartz watch, it cost the same as a medium-sized car. Seiko later went on to introduce the first quartz chronograph.

DESIGN

A faithful homage with the latest functions

This model is a re-creation of the classic 1968 model, but with greatly enhanced specifications that incorporate the latest advancements in Seiko’s craftsmanship and technology.

 

A sharp case design

Like the original version, this recreation features a flat case with a sharp design. Seiko’s unique Zaratsu polishing techniques accentuate the edges, bringing additional sharpness and beauty to the lugs.

 

 

A flat case back, faithful to the original

While the original model was an air diver’s watch, the re-creation has been upgraded for saturation diving via a resilient one-piece case structure.
Even with this enhanced specification, the watch rests easily on any size wrist.

 

 

Enhanced legibility.

Each of the three hands has a different design, length and width and the LumiBrite on each has a distinct shape so that the time is easily read, under any circumstances. The dual-curved sapphire crystal delivers exceptional clarity from any viewing angle as well as enhanced durability.

 

 

Distinctive markers and long-lasting LumiBrite

The differentiated 12, 6, and 9 markers ensure that the watch can be read without error even 300 meters down.
The contrast of the black dial and special, long lasting LumiBrite allows for legibility even in the darkest environments.
The mono-directional rotating bezel ensures the absolute safety that divers require.

 

 

Based on the original design, the strap is made from a state-of-the-art material.

The original strap design has been re-created in high strength silicone, adding reliability while retaining comfort.


Movement: Caliber 8L55

This re-creation incorporates a Caliber 8L55 10-beat movement, specially optimized and adapted for use in a diver’s watch with this structure.
This caliber beats at 36,000 vibrations per hour and has a power reserve of 55 hours, and it is also assembled by Seiko’s leading craftsmen at the Shizukuishi Watch studio.

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