Seiko Cal. 4418 - 521

Seiko 4418-521

The 4418-521 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-d8e0da622806]

Also known as: Samurai, World Timer

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Green
Jewels
18j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1966

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