Seiko Cal. 7028 - 691

The Seiko 7028-691 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-3f550c88e404]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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