Seiko Cal. 6624 - 685

This Spring Drive model from 1981 features a 42mm Two-Tone case. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-21ea8ecdd36b]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1981

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