Seiko Cal. 5657 - 749

The Seiko 5657-749 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-80a08329cb2f]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1971

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