Seiko Cal. 5641 - 716

The Seiko 5641-716 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-224e4ac3d060]

Also known as: Tuna, Rally

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1981

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