Seiko Cal. 6663 - 578

The Seiko 6663-578 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-14ed11443558]

Also known as: Rally, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1966

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