Seiko Cal. 7028 - 139

The Seiko 7028-139 represents an important milestone in Seiko's 1989 lineup. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-2547869dac08]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1989

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