Seiko Cal. 3811 - 691

The Seiko 3811-691 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-555285ba14e1]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1972

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