Seiko Cal. 7173 - 663

Released in 1974, the Cal. 7173 with design code 663 was part of Seiko's domestic market collection. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-b54be42737cf]

Also known as: UFO, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1974

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