Seiko Cal. 4428 - 739

This Hand-Winding model from 1979 features a 39mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-e6720346105c]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1979

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