Seiko Cal. 6674 - 633

The Seiko 6674-633 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-0ab0bb877947]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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