A comprehensive collection of Seiko Samurai and King Samurai references across four generations. Errors and missing references may exist. Please use the contact form to notify.
52 models|Last updated
Automatic
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Reference Note: JDM (Japan Domestic Market) references are listed where found, allowing you to identify both global and regional model variants.
Samurai First Generation (2004-2008)
The Seiko Samurai was introduced in 2004, earning its nickname from the sword-shaped hands that recall the silhouette of a katana.
First-generation models use a 42mm case with Hardlex mineral crystal, screw-down crown at 3 o'clock, and 200m water resistance. The JDM titanium versions are powered by the 21-jewel 7S25 caliber, while the international stainless steel models use the 23-jewel 7S35 caliber. Both are automatics with sharp downward-sloping lugs, but neither offers hacking or hand-winding (a notable quirk that disappears in later generations).
This generation predates the Prospex line consolidation and so carries no Prospex "X" logo on the dial. Three titanium references launched in Japan in black, blue, and orange, followed by stainless steel international variants and a series of Thailand-exclusive "Ninja" colourways. Today the original SBDA titanium trio and the Ninja LEs are the most sought-after.
AutomaticLimited Edition - 100 pieces (issued to JARE expedition staff)
Titanium Samurai made for the 47th Japanese Antarctic Research Expedition. Dial printed "JARE 47 ★2005-2007★" with an Emperor penguin over a map of Antarctica. Case 7S25-00D0.
JARE49 Antarctic Expedition Samurai
JARE49
Black Dial / Grey & Black Bezel - Cal. 7S25
Year: 2007-2009 (expedition)
AutomaticLimited Edition - 250 pieces (issued to JARE expedition staff)
Titanium Samurai made for the 49th Japanese Antarctic Research Expedition. Dial printed "JARE 49 2007-2009" with expedition pictograms and the icebreaker Shirase. Case 7S25-00E0.
White Steel Samurai
SNM009 / SNM031
White Waffle Stainless - Cal. 7S35
Year: 2004
Automatic
International market stainless steel release.
Black Steel Samurai
SNM011 / SNM033
Black Waffle Stainless - Cal. 7S35
Year: 2004
Automatic
International market stainless steel release.
Black Ninja Samurai
SNM015
Black Ninja - Cal. 7S35
Year: 2005
AutomaticLimited Edition - 500 pieces (Thailand)
Very rare. Individually numbered.
White Ninja Samurai
SNM017
White Ninja - Cal. 7S35
Year: 2005
AutomaticLimited Edition - 500 pieces (Thailand)
Very rare. Individually numbered.
Yellow Ninja Samurai
SNM019
Yellow Ninja - Cal. 7S35
Year: 2005
AutomaticLimited Edition - 300 pieces (Thailand)
Very rare. Individually numbered; the Yellow and Orange are the hardest of the four Ninjas to find.
Orange Ninja Samurai
SNM021
Orange Ninja - Cal. 7S35
Year: 2005
AutomaticLimited Edition - 300 pieces (Thailand)
Very rare. Individually numbered; the Yellow and Orange are the hardest of the four Ninjas to find.
Samurai Second Generation (2017-2020)
After nearly a decade of silence, the Samurai returned in 2017 with a substantial overhaul. The case grows to 43.8mm and 13.4mm thick, gains a more aggressive angular profile, and adopts the Prospex "X" logo. The 7S25/7S35 of Gen 1 is replaced by the 4R35, still a 23-jewel automatic at 21,600 vph and 41h reserve, but now with hacking and manual winding.
The standard arrow-style hands, borrowed from the Seiko Monster line, replace the original swords (purists were divided). The screw-down crown at 3 o'clock carries over from Gen 1, and Hardlex remains across most of the range; sapphire appears only on selected limited editions.
This generation expanded the catalog rapidly with PADI, Save the Ocean, Zimbe, Dawn Grey, and various JDM colour variants. Several core references (e.g. SRPB51 → SRPF03, SRPB99 → SRPF09) were silently re-numbered partway through production with no mechanical changes.
Blue Samurai
SRPB49 / SBDY007
Blue Dial / Blue-Grey Bezel - Cal. 4R35
Year: 2017
Automatic
Black Samurai
SRPB51 / SBDY009
Black Dial / Black-Grey Bezel - Cal. 4R35
Year: 2017
Automatic
Later re-numbered as SRPF03 with no mechanical changes.
Pepsi Samurai
SRPB53
Black Dial / Pepsi Bezel - Cal. 4R35
Year: 2017
Automatic
Black Gold Samurai
SRPB55
Black-Coated Case / Gold Accents - Cal. 4R35
Year: 2017
Automatic
Blue Lagoon Samurai
SRPB09
Blue Sunray / Yellow Accents - Cal. 4R35
Year: 2017
AutomaticLimited Edition - 6,000 pieces
Orange Samurai
SRPB97 / SRPC07
Orange Dial / Black Bezel - Cal. 4R35
Year: 2017
Automatic
SRPB97 was Amazon-exclusive on rubber; SRPC07 is the non-exclusive bracelet version.
PADI Samurai
SRPB99 / SRPF09 / SBDY011
Wave Dial / Pepsi Bezel - Cal. 4R35
Year: 2017
AutomaticPADI Special Edition
Later re-numbered as SRPF09 with no mechanical changes.
Unlike standard Samurais, the SRPD13 uses flat baton hands and simple stick markers instead of the trademark arrow handset and faceted applied indices.
Black Case / Black Dial / Orange Minute Hand - Cal. 4R35
Year: 2021
AutomaticLimited Edition - 8,000 pieces
Part of the 2021 Black Series with the SRPH13 Monster and SNE577 Tuna. Uses the 43.8mm Hardlex case of this generation, released during the King Samurai era. Not to be confused with the 2005 Thai "Ninja" Samurai (SNM015-021).
King Samurai / Third Generation (2020-2023)
Following the King Turtle and King Sumo precedent, late 2020 saw Seiko introduce the "King Samurai", a premium upgrade rather than a mechanical redesign. The 43.8mm case, 4R35 movement, and 200m water resistance all carry over from Gen 2.
Three changes define the King: an aluminium bezel insert is replaced by polished black ceramic; Hardlex is replaced by sapphire crystal with a date cyclops/magnifier; and case finishing is refined throughout. Visually the dial markers and bezel font are tightened, and the launch trio (SRPE33, SRPE35, SRPE37) sets the tone for the generation.
The King Samurai went on to host a wide run of regional limited editions: PADI variants (SRPG21, SRPJ93), the Save the Ocean Manta Ray pair (SRPE33, SRPF79), the Europe-only Shu-Iro (SRPH61) in traditional vermilion red, the Black Series Night Vision (SRPH97) with mint-green lume, and Zimbe and country-specific releases for Thailand and the Philippines.
Marking the Samurai's 20th anniversary in 2024, Seiko introduced its most significant redesign since 2017. The case shrinks to 41.7mm × 12.3mm × 49.5mm lug-to-lug (down from 43.8mm), with much more tapered, slimmer lugs in direct response to long-standing complaints about the prior generation's wrist presence.
The hands are redesigned again. They are not a literal return to the Gen 1 swords, but a clear step in that direction from the Gen 2/3 arrow handset, and fully filled with LumiBrite. The ceramic bezel of the King generation is dropped in favour of a return to aluminium inserts, and Hardlex replaces sapphire on the standard models, repositioning the line as a more accessible, everyday-wearing diver while the King remains the premium option. The 4R35 movement carries over unchanged.
Burgundy Samurai
SRPL11 / SBDY129
Burgundy Red Dial / Bezel - Cal. 4R35
Year: 2024
Automatic
Black Samurai
SRPL13 / SBDY131
Black Dial / Black Bezel - Cal. 4R35
Year: 2024
Automatic
Stealth Black Samurai
SRPL15 / SBDY133
Black-Coated Case / Vintage Lume - Cal. 4R35
Year: 2024
Automatic
Blue Samurai
SRPL51
Matte Blue Dial / Metallic Blue Bezel - Cal. 4R35
Year: 2025
Automatic
Green PADI Samurai
SRPL53 / SBDY135
Green Dial / PADI Special Edition - Cal. 4R35
Year: 2025
AutomaticPADI Special Edition
Samurai PDM Stride
SRPM03
Navy Blue Stride Pattern Dial - Cal. 4R35
Year: 2025
AutomaticLimited Edition - 500 pieces (Thailand)
Collaboration with Thai brand PDM (Product Design Matters); dial features Finnish designer Sini Henttonen's award-winning Stride pattern.
Samurai 145th Anniversary
HBB001
Silver Sunburst Dial / Seiko Blue Bezel - Cal. 4R35
