Seiko Cal. 5613 - 660

The Seiko 5613-660 represents an important milestone in Seiko's 1982 lineup. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-78aa9f3af648]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1982

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