Seiko Cal. 6634 - 259

The Seiko 6634-259 represents an important milestone in Seiko's 1966 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d9a9ac9ad813]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1966

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