Seiko Cal. 5657 - 308

The Seiko 5657-308 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-43cf43dcc4a5]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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