Seiko Cal. 6634 - 843

Seiko 6634-843

The 6634-843 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-f686955b859a]

Also known as: Monster, Goldfeather

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1971

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