Seiko Cal. 6642 - 977

The Seiko 6642-977 represents an important milestone in Seiko's 1974 lineup. With its 18mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-9122d81f6345]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1974

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