Seiko Cal. 6618 - 683

Seiko 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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