Seiko Cal. 4420 - 457

This Hand-Winding model from 1976 features a 35mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-b8c70ea5af03]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1976

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