Seiko Cal. 6652 - 397

The Seiko 6652-397 represents an important milestone in Seiko's 1968 lineup. With its 22mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-912fd0acd91f]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1968

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