Seiko Cal. 5663 - 725

The Seiko 5663-725 represents an important milestone in Seiko's 1971 lineup. Powered by the 5663 caliber with 29j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-3501c4daec28]

Also known as: Turtle, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1971

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