Seiko Cal. 6687 - 993

The Seiko 6687-993 represents an important milestone in Seiko's 1979 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-c805414dc87a]

Also known as: Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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