Seiko Cal. 5656 - 901

The Seiko 5656-901 represents an important milestone in Seiko's 1971 lineup. Powered by the 5656 caliber with 30j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-fd1808364a30]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1971

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