Seiko Cal. 0767 - 521

Seiko 0767-521

The 0767-521 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-e80975b6bab5]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Green
Jewels
36j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1991

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