Seiko Cal. 4439 - 161

The Seiko 4439-161 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-db763cb6d698]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1979

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