Seiko Cal. 6613 - 840

Released in 1978, the Cal. 6613 with design code 840 was part of Seiko's domestic market collection. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-c3288b7fe7ec]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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