Seiko Cal. 3890 - 681

The Seiko 3890-681 represents an important milestone in Seiko's 1989 lineup. Powered by the 3890 caliber with 33j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-9f54cc3a03a9]

Also known as: Monster, Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1989

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