Seiko Cal. 3857 - 220

The Seiko 3857-220 represents an important milestone in Seiko's 1978 lineup. Powered by the 3857 caliber with 28j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-8703b84f8eab]

Also known as: Silverwave, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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