Seiko Cal. 6694 - 647

This Hand-Winding model from 1979 features a 37mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-086e40ff7306]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1979

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