Seiko Cal. 4430 - 201

The 4430-201 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-88b8bd51e5f3]

Also known as: Navigator, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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