Seiko Cal. 5681 - 933

The Seiko 5681-933 represents an important milestone in Seiko's 1972 lineup. Powered by the 5681 caliber with 26j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-f5feb3bdc0ef]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1972

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