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  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
  • Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035
Seiko

Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035

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Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035

1 Review

Celebrate 55 years of horology with Seiko as the renowned watchmaker from the east, releases its 1975  “Tuna” Diver this year. Introducing the Seiko Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary Limited Edition Ref. SBDX035, a fine remake of Seiko’s first ever professional saturation dive watch.

The limited-edition timepiece is powered by an iconic high grade 8L35 calibre which is a genuine undecorated to the Grand Seiko caliber 9255, the first high-end autoamtic movement from Seiko . This movement is only used in a handful of Prospex “marine master” dive watches in the past few years. Made with the utmost care by Seiko's skilled craftsmen in the Shizuku-ishi Watch Studio in Morioka, Japan, this calibre operates at 28.800 bph (10 beats/sec) and has a power reserve of 50 hours. Built with 26 jewels, this movement is with an expected accuracy within -10/+15 seconds per day.

 
Seiko Prospex 1975 Professional Diver 1000m Tuna 55th Anniversary - Ltd Ed 1100pcs Ref. SBDX035 / SLA041J1
While faithful to the original 1975 Ref. 6159-7010 300m Diver, the greatest advance of the “Tuna” design is the usage of Seiko’s Ever-Brilliant Stee bezel in its shrouded case construction. Providing greater corrosion resistance, this one piece inner  titanium case is fitted with the L-shaped gasket for helium resistance; and gets topped with its brilliant white hue bezel, cladded within a matte ceramic shroud, which sets it apart from other Seiko timepieces. The mono-bloc case embodies three solid materials, in with the first use of Ever-Brilliant coating. The 1000m Tuna is unprecedented in the watch industry (as of December 2019) because of the many challenges its usage in the manufacture of watches poses to watchmakers.

And as the Tuna was mend for true professionals, Seiko decorated it with the upmost modern materials ever available for durability. Enhanced by the super-hard coating which allows for greater scratch resistance, this mono-bloc  case has a PERN value that is 1.7 times higher than that of the steel used in other high-end watches. Armed with years of experience and innovative techniques, the Seiko team overcame the obstacles of using this stainless-steel material to bring a whole new level of durability to dive watches with the combination of Ever-Brilliant Steel bezel, titanium body,  and ceramic outer-shroud of the re-creation.

Titanium Case with Ever-Brilliant Steel
The case of this timepiece is analogous to the original 1975 design. Best yet, it features the almost identical size of 52.4mm, allowing for greater legibility and a truthful wearing experience just like back in the 70s. The faithful re-creation continues a  legless silhouette with a measuring length of 53.5mm and a height of 17.2mm. The case back of this dive watch bears the same Seiko Tsunami emblem just as the 6159-7010 diver. The engravings commemorate the timeless style of this original timepiece and marks the 55th anniversary of Seiko’s, and Japan’s first saturation dive watch.

Seiko’s Prospex lines are characterised by the “X” logo, which sometimes, has been regarded as “extra” by some enthusiasts, and possibly a bane of those elite watch collectors. Not a fan of this logo? Fret not! The SBDX035 flaunts a deep matte blue-grey dial that is unique to Seiko’s 55th anniversary line-up, while tributing a clean design of the 6159 diver. Capturing the mystifying beauty of the sea, these cool blue tones hint at the timepiece’s superb functionality, even in the dark depths of the ocean. The subtle ombre of its dial colour is inspired by the gradual fading of light as one dives deeper into the sea. Described by the double-red wordings at the lower section, its dial material is made from pure iron in which allows the watch to enhanced magnetism projection up to 40,000 A/m, making it truly an overbuilt tool watch. Furthermore. its handset, bezel markings and dial markers are applied with long-lasting Lumibrite which has an ivory green hue under normal lighting conditions and glows green in the dark, allowing for excellent readability.

Ceramic Shroud. Monobloc construction. 1000m water resistant.
With a screw-down sterile crown as well as a bordered and bevelled date display both located at its 4 and  3 o’clock respectively, this diver has a water resistance of 1000m, which is pumped up from 600m that the 6159-7010 has. The sleek metal trims accentuating the date window as well as the font style and format of its dial reflect the exact essence of the classic 60s-70s design. Additionally, this timepiece is fitted with a flat sapphire crystal which graces the watch with a utilitarian look.

The SBDX035 comes with a blue accordion rubber strap that complements the ocean blue hue of its dial. Matching the dive watch perfectly, the athletic look of this silicon rubber strap comes from its unique folded patterns. To top it off, this exquisite diver is encased in a black 55th anniversary box that proudly showcases Seiko’s signature dolphin emblem.

Seiko's Lumibrite needs no introduction
This timepiece is the epitome of Seiko’s dive watches and one of the best recreations of the original 1975 6159-7010 diver. With only 1100 pieces produced, this limited-edition dive watch is a much-anticipated addition to the Prospex collection. This well fabricated timepiece is the ultimate expression  of the first Tuna, and is fully up to date in its specifications and execution which is testament to Seiko’s high standards and customer-centric ethos. Presenting the SBDX035, a maxed-out specs diver honouring Seiko’s 55 years of history that will find its way into the collections of many dive watch enthusiasts and elite collectors.

Specifications

icon-maker
Maker
Seiko Japan
icon-movement
Movement
Caliber 8L35. Seiko 26-Jewel Automatic.
icon-accuracy_range
Accuracy range
-10/+15 seconds per day.
icon-dial
Dial
Matte blue
icon-luminous
Luminous
Lumibrite
icon-case
Case
Titanium with Ever-Brilliant Steel
icon-crown_type
Crown type
Screwdown. Signed Crown
icon-lug_width
Lug width
22mm
icon-crystal
Crystal material
Sapphire crystal
icon-strap
Strap
Blue silicone band
icon-water_resistance
Water resistance
1000m. ISO certified.
icon-dimensions
Dimensions
52.4mm in diameter, 53.5mm lug to lug, 17.2mm thick