Seiko Cal. 6657 - 193

The Seiko 6657-193 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-8c8db8290f3d]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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