Seiko Cal. 6331 - 689

The Seiko 6331-689 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-7c55bb4914fa]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1987

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