Seiko Cal. 3820 - 100

This Spring Drive model from 1974 features a 41mm Two-Tone case. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-9a6975e7bd5f]

Also known as: Samurai, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1974

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