Seiko Cal. 6634 - 777

The Seiko 6634-777 represents an important milestone in Seiko's 1974 lineup. It features a Cream dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-1a9f8bf6ef08]

Also known as: UFO, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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