Seiko Cal. 3899 - 938

The Seiko 3899-938 represents an important milestone in Seiko's 1974 lineup. Powered by the 3899 caliber with 31j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-7b01a0ee2fe3]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1974

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