Seiko Cal. 6663 - 528

The Seiko 6663-528 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ed5e0ad9523f]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1967

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