Seiko Cal. 6670 - 550

Seiko 6670-550

The Seiko 6670-550 represents an important milestone in Seiko's 1979 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-c379b53de00d]

Also known as: Sumo, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
35mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Cream
Jewels
33j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1979

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