Seiko Cal. 4438 - 441

The Seiko 4438-441 represents an important milestone in Seiko's 1990 lineup. Powered by the 4438 caliber with 19j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-fdce9dc5012b]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1990

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