Seiko Cal. 7078 - 378

The Seiko 7078-378 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-78a0ca7681e5]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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