Seiko Cal. 5688 - 315

The Seiko 5688-315 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-206bbbfb3a81]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1971

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