Seiko Cal. 3899 - 527

The Seiko 3899-527 represents an important milestone in Seiko's 1989 lineup. Powered by the 3899 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-a5823d46890c]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1989

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