Seiko Cal. 6222 - 737

This Spring Drive model from 1978 features a 40mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-3d1c65c10558]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1978

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