Seiko Cal. 5688 - 552

The Seiko 5688-552 represents an important milestone in Seiko's 1976 lineup. With its 22mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-27d852105fd4]

Also known as: Sumo, Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

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