Seiko Cal. 5615 - 783

The Seiko 5615-783 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-f9ccecc9da80]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1981

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