Seiko Cal. 5615 - 904

The Seiko 5615-904 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-1e6af45cdfb1]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1979

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