SOV-9900S Seadog

General and Technical Data

Model number: SOV-9900S
Code name: Seadog
Unit type: submersible construction labor
Manufacturer: Buchiyama Heavy Industries
Operator: civilians
Rollout: April 1999 AD
Accommodation: pilot only, in standard cockpit in torso
Dimensions: overall height 6.30 meters; overall width 4.72 meters
Weight: standard 9.88 metric tons; full 10.23 metric tons
Armor materials: fiber reinforced material
Powerplant: unknown
Maximum weight lifting capacity: 2.2 metric tons
Minimum revolving radius: unknown
Equipment and design features: sensors, range unknown; air tank
Fixed armaments: none
Optional hand armaments: none

Technical and Historical Notes

The SOV-9900S Seadog was a submersible construction labor manufactured by Buchiyama Heavy Industries. The Seadog could travel through water at a speed of up to 30 knots and dive to depths of 70 meters. In contrast to other submersible labors, the Seadog could connect to a ship on the surface for power and oxygen, but it was also capable of operating on its own. A Seadog was utilized in an attempt to lead a stray humpback whale out of Tokyo Bay. In the coastal town of Shikura, several fisherman conspired to increase tourism to boost the town’s economy by staging appearances from a plesiosaur named “Plessie.” This deception was accomplished by using two labors: an ML-98 Celkee H10 was fitted with coverings to act as Plessie’s “head,” while a Seadog was fitted with coverings to serve as the “fins.” After the deception was discovered by the Tokyo police’s SV2 labor unit, the town’s tourism rush immediately dissipated.

Miscellaneous Information

Pilot: Katsuji
Original mechanical designer: Yutaka Izubuchi



Patlabor Info


Naoyuki Yoshinaga

Kazunori Ito
Mamoru Oshii
Hiroyuki Hoshiyama
Naoto Kimura
Tetsuo Takahashi
Michiko Yokote
Hibari Arisu

Mechanical Designer(s):
Yutaka Izubuchi
Yoshinori Sayama

Character Designer:
Akemi Takada

Musical Composer:
Kenji Kawai

47 episodes

Japan 10.11.1989 – 09.26.1990


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