Seiko Cal. 4439 - 781

This Spring Drive model from 1974 features a 46mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-82e3dde7ed71]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1974

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