Seiko Cal. 7163 - 839

The Seiko 7163-839 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-ca76877be4a0]

Also known as: UFO, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1978

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