Seiko Cal. 4428 - 570

The 4428-570 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ba7c9a0a344e]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1995

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