Seiko Cal. 0728 - 203

The Seiko 0728-203 represents an important milestone in Seiko's 1989 lineup. Powered by the 0728 caliber with 32j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-1657a2b40a26]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1989

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