Seiko Cal. 0728 - 427

The Seiko 0728-427 represents an important milestone in Seiko's 1987 lineup. With its 20mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-3f6f41e9fcc9]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1987

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