Seiko Cal. 6628 - 866

Seiko 6628-866

The 6628-866 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-ddac871e428d]

Also known as: Tuna, Bullhead

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
Green
Jewels
34j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1966

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