Seiko Cal. 6163 - 340

The Seiko 6163-340 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2aa023dfa281]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1980

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