Seiko Cal. 3811 - 531

The Seiko 3811-531 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-e72dba047cb5]

Also known as: Helmet, Silverwave

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1968

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