Seiko Cal. 6635 - 912

Seiko 6635-912

The 6635-912 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-780467845c36]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Champagne
Jewels
34j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1972

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