Seiko Cal. 6648 - 739

Released in 1973, the Cal. 6648 with design code 739 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-481a4fe883bd]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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