Seiko Cal. 3816 - 984

The Seiko 3816-984 represents an important milestone in Seiko's 1977 lineup. Powered by the 3816 caliber with 33j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-eaaa3bb4a7cd]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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