Seiko Cal. 3857 - 143

The Seiko 3857-143 represents an important milestone in Seiko's 1984 lineup. Powered by the 3857 caliber with 34j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-6d4d20fbfeee]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1984

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