Seiko Cal. 4523 - 381

The Seiko 4523-381 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-6baa1d875170]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1970

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