Seiko Cal. 6647 - 380

The Seiko 6647-380 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-233a9b9ee96b]

Also known as: Panda, Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1970

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