Seiko Cal. 4428 - 452

This Kinetic model from 1977 features a 40mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-d3646ddef889]

Also known as: Helmet, Goldfeather

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1977

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