Seiko Cal. 6646 - 673

This Spring Drive model from 1990 features a 42mm Hardlex-Coated Steel case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c9b0fc0f0e61]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1990

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