Seiko Cal. 5651 - 656

This Spring Drive model from 1971 features a 46mm Two-Tone case. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-a6cb3179dcb7]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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