Seiko Cal. 6647 - 950

Released in 1966, the Cal. 6647 with design code 950 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-ad9123827be9]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1966

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