Seiko Cal. 6663 - 392

The Seiko 6663-392 represents an important milestone in Seiko's 1972 lineup. Powered by the 6663 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-c79ea78751ad]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1972

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