Seiko Cal. 6633 - 539

The Seiko 6633-539 represents an important milestone in Seiko's 1979 lineup. Powered by the 6633 caliber with 19j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-0bf92dbb037c]

Also known as: Samurai, Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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