Seiko Cal. 4491 - 646

Seiko 4491-646

The 4491-646 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-d3a867c7759b]

Also known as: Helmet, Goldfeather

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
46mm
Case Thickness
12.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1980

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