Seiko Cal. 7166 - 689

Seiko 7166-689

The 7166-689 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2741fbc1e97d]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
43mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1979

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