Seiko Cal. 6345 - 620

The Seiko 6345-620 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-24907ee11ff1]

Also known as: Tuna, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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