Seiko Cal. 5660 - 720

The Seiko 5660-720 represents an important milestone in Seiko's 1970 lineup. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-62eecc3185bd]

Also known as: Goldfeather, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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