Seiko Cal. 6684 - 713

Released in 1975, the Cal. 6684 with design code 713 was part of Seiko's domestic market collection. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a6c3cc4aeab0]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1975

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