Seiko Cal. 7063 - 428

The Seiko 7063-428 represents an important milestone in Seiko's 1968 lineup. Powered by the 7063 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-9e37970df812]

Also known as: Tuna, Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

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