Seiko Cal. 4420 - 181

This Hand-Winding model from 1988 features a 38mm Two-Tone case. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-7893af41bde8]

Also known as: Sumo, Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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