Seiko Cal. 3811 - 761

The Seiko 3811-761 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-16bb98edf4ad]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1974

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