Seiko Cal. 5633 - 428

The Seiko 5633-428 represents an important milestone in Seiko's 1991 lineup. Powered by the 5633 caliber with 33j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-b873fbdd4c69]

Also known as: Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1991

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