Seiko Cal. 0791 - 331

The Seiko 0791-331 represents an important milestone in Seiko's 1971 lineup. With its 22mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-c9c8fe131ebf]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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