Seiko Cal. 3898 - 331

The 3898-331 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3898 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-1b1d7387dddf]

Also known as: Turtle, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1989

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