Seiko Cal. 3857 - 617

The Seiko 3857-617 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-40fb12992136]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1977

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