Seiko Cal. 3899 - 106

The Seiko 3899-106 represents an important milestone in Seiko's 1981 lineup. Powered by the 3899 caliber with 21j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-55d5c1aec58e]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1981

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