Seiko Cal. 6663 - 161

The Seiko 6663-161 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6d74c59f964d]

Also known as: Emperor, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1970

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