Seiko Cal. 6657 - 113

This Automatic model from 1974 features a 37mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-624c67488063]

Also known as: Navigator, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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