Seiko Cal. 5666 - 725

The Seiko 5666-725 represents an important milestone in Seiko's 1978 lineup. Powered by the 5666 caliber with 20j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-c63996442c7e]

Also known as: Rally, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1978

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