Seiko Cal. 6156 - 690

The Seiko 6156-690 represents an important milestone in Seiko's 1970 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a6000e42fb9f]

Also known as: Sumo, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1970

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