Seiko Cal. 6631 - 584

Seiko 6631-584

The 6631-584 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-b98857935212]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
10.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
33j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1974

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seikata-wm-b98857935212