Seiko Cal. 6630 - 977

The Seiko 6630-977 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-bf8a2ba4cbc4]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1970

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