Seiko Cal. 6630 - 777

The Seiko 6630-777 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-df18c5012d90]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1966

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