Seiko Cal. 6688 - 516

This Spring Drive model from 1981 features a 39mm Titanium case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6ab0dc555206]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1981

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