Seiko Cal. 6634 - 872

The Seiko 6634-872 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-055a98610785]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1987

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