Seiko Cal. 3855 - 207

The Seiko 3855-207 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-ac10b371d931]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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