Seiko Cal. 4431 - 688

The Seiko 4431-688 represents an important milestone in Seiko's 1975 lineup. It features a Champagne dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-a042aac500b8]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1975

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