Seiko Cal. 0728 - 584

This Spring Drive model from 1992 features a 44mm Hardlex-Coated Steel case. Powered by the 0728 caliber with 17j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-24abc0fb1d66]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1992

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