Seiko Cal. 7163 - 173

The Seiko 7163-173 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-5b746b1e0123]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1975

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