Seiko Cal. 6363 - 656

The Seiko 6363-656 represents an important milestone in Seiko's 1977 lineup. Powered by the 6363 caliber with 26j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-d2dd2cb87cc8]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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