Seiko Cal. 3811 - 990

The Seiko 3811-990 represents an important milestone in Seiko's 1971 lineup. Powered by the 3811 caliber with 18j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-ca53fa2b8cc8]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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