Seiko Cal. 0781 - 331

The Seiko 0781-331 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-adb6de83a803]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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