Seiko Cal. 4439 - 387

This Kinetic model from 1986 features a 41mm PVD Black case. Powered by the 4439 caliber with 19j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-4e0a2d617e5d]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1986

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