Seiko Cal. 7171 - 663

The Seiko 7171-663 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-cfd42910cf0f]

Also known as: Monster, Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1973

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