Seiko Cal. 6647 - 220

Seiko 6647-220

The 6647-220 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-1c63353ec942]

Also known as: Turtle, World Timer

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
14.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
34j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1979

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seikata-wm-1c63353ec942