Seiko Cal. 4539 - 578

The Seiko 4539-578 represents an important milestone in Seiko's 1985 lineup. With its 22mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-d3b06f69c776]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1985

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