Seiko Cal. 4439 - 428

This Automatic model from 1977 features a 39mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-7620db035445]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1977

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