Seiko Cal. 4438 - 204

Released in 1972, the Cal. 4438 with design code 204 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-84df79fb3066]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1972

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