Seiko Cal. 6691 - 762

The Seiko 6691-762 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3bc8bd62d281]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1974

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