Seiko Cal. 4421 - 531

Seiko 4421-531

The 4421-531 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-eae9e45e12c3]

Also known as: Turtle

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
15.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Champagne
Jewels
30j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1972

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