Seiko Cal. 6618 - 683

The Seiko 6618-683 represents an important milestone in Seiko's 1966 lineup. Powered by the 6618 caliber with 29j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-7b27e76d1f47]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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