Seiko Cal. 4430 - 687

The Seiko 4430-687 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-3876bfb14063]

Also known as: Monster, Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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