Seiko Cal. 5660 - 722

The Seiko 5660-722 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-c6262afa7a6a]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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