Seiko Cal. 6666 - 655

Seiko 6666-655

The 6666-655 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-b29de5d994aa]

Also known as: Sumo, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1970

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