Seiko Cal. 5657 - 618

This Automatic model from 1979 features a 44mm Two-Tone case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-efd901599bb3]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1979

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