Seiko Cal. 6620 - 559

The Seiko 6620-559 represents an important milestone in Seiko's 1990 lineup. Powered by the 6620 caliber with 18j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-e1ea0a74820c]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1990

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