Seiko Cal. 6680 - 137

The Seiko 6680-137 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-11ad0cf062a3]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1973

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