Seiko Cal. 4431 - 354

The Seiko 4431-354 represents an important milestone in Seiko's 1990 lineup. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-735bc1cb3e6d]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1990

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