Seiko Cal. 6684 - 722

Released in 1972, the Cal. 6684 with design code 722 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-65c590cbfb03]

Also known as: UFO, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1972

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