Seiko Cal. 4478 - 715

The Seiko 4478-715 represents an important milestone in Seiko's 1983 lineup. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-d567eba08c4e]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1983

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