Seiko Cal. 6657 - 686

This Automatic model from 1966 features a 46mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-ea8f6bd47a28]

Also known as: Shogun, Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

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