Seiko Cal. 6630 - 913

Seiko 6630-913

The 6630-913 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a99442db46ed]

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
40mm
Case Thickness
11.2mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Silver
Jewels
32j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1983

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