Seiko Cal. 6677 - 435

The Seiko 6677-435 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-0516cfda8df0]

Also known as: Sumo, UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1976

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