Seiko Cal. 7163 - 655

Seiko 7163-655

The 7163-655 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e97931f849bd]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
8.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Green
Jewels
27j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1972

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