Seiko Cal. 3889 - 691

The Seiko 3889-691 represents an important milestone in Seiko's 1990 lineup. Powered by the 3889 caliber with 34j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-dad07a7c55d1]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1990

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