Seiko Cal. 5689 - 731

The Seiko 5689-731 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-b7af98efc34a]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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