Seiko Cal. 7133 - 391

The Seiko 7133-391 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-cdee1cc734b4]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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