Seiko Cal. 3857 - 664

The Seiko 3857-664 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ebe9c12d4d82]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1976

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