Seiko Cal. 5663 - 725

Seiko 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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