Seiko Cal. 6621 - 978

The Seiko 6621-978 represents an important milestone in Seiko's 1971 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-8c14e1050183]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1971

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