Seiko Cal. 3820 - 817

This Spring Drive model from 1974 features a 42mm Stainless Steel case. It features a White dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-ce0539e37b75]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1974

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