Seiko Cal. 4440 - 391

The Seiko 4440-391 represents an important milestone in Seiko's 1983 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-1591cd269fef]

Also known as: Tuna, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1983

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