Seiko Cal. 5689 - 131

The Seiko 5689-131 represents an important milestone in Seiko's 1967 lineup. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-74326e9f818e]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1967

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