Seiko Cal. 6657 - 722

Seiko 6657-722

The 6657-722 is a sought-after Kinetic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-d1968b42d6cb]

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
13.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1973

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