Seiko Cal. 5666 - 725

Seiko 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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seikata-wm-c63996442c7e