Seiko Cal. 4440 - 913

The Seiko 4440-913 represents an important milestone in Seiko's 1984 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-09088b50b34a]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1984

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