Seiko Cal. 0728 - 704

Released in 1966, the Cal. 0728 with design code 704 was part of Seiko's domestic market collection. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-1fc1aac53d24]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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