Seiko Cal. 4439 - 630

This Spring Drive model from 1984 features a 42mm Gold-Plated case. Powered by the 4439 caliber with 17j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-92d083b98a79]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1984

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