Seiko Cal. 3881 - 946

Released in 1976, the Cal. 3881 with design code 946 was part of Seiko's domestic market collection. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ab5aad0c9e6f]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1976

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