Seiko Cal. 6636 - 425

The Seiko 6636-425 represents an important milestone in Seiko's 1984 lineup. Powered by the 6636 caliber with 22j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-818ecd80af7c]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1984

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