Seiko Cal. 3816 - 934

Released in 1976, the Cal. 3816 with design code 934 was part of Seiko's domestic market collection. Powered by the 3816 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-b61773b1bc7b]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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