Seiko Cal. 6657 - 574

The Seiko 6657-574 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-1667d60010b4]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1986

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