Seiko Cal. 6397 - 720

Seiko 6397-720

The 6397-720 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-69f98ae319c8]

Also known as: Sea Horse

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
9.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1981

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