Seiko Cal. 4438 - 745

The Seiko 4438-745 represents an important milestone in Seiko's 1984 lineup. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-d9525ca37181]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1984

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