Seiko Cal. 6631 - 767

Seiko 6631-767

The 6631-767 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7a915cbb518d]

Also known as: Rally, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
32j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1980

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seikata-wm-7a915cbb518d