Seiko Cal. 3861 - 209

The Seiko 3861-209 represents an important milestone in Seiko's 1970 lineup. Powered by the 3861 caliber with 35j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-7171ba09b31f]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1970

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