Seiko Cal. 6677 - 660

The Seiko 6677-660 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e9d424bd5e11]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1975

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