Seiko Cal. 3881 - 978

The Seiko 3881-978 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-fca44fbcfb0e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1981

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