Seiko Cal. 3857 - 486

The Seiko 3857-486 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-01630ed815bd]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1966

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