Seiko Cal. 4431 - 823

Released in 1990, the Cal. 4431 with design code 823 was part of Seiko's domestic market collection. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-690ee5009fb6]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1990

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