Seiko Cal. 6688 - 752

Released in 1969, the Cal. 6688 with design code 752 was part of Seiko's domestic market collection. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6b6d2ca3ed79]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1969

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