Seiko Cal. 5657 - 316

The Seiko 5657-316 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-9f75522aa30e]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1967

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