Seiko Cal. 3811 - 765

The Seiko 3811-765 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a71dfdcd3413]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1975

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