Seiko Cal. 4461 - 666

Seiko 4461-666

The 4461-666 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-30e1542e0b57]

Also known as: Tuna, Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
37mm
Case Thickness
8.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1976

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