Seiko Cal. 5643 - 488

The Seiko 5643-488 represents an important milestone in Seiko's 1972 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-35529d7fe6fc]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1972

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