Seiko Cal. 4421 - 977

The Seiko 4421-977 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-0d08327746a8]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1986

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