Seiko Cal. 3839 - 844

The Seiko 3839-844 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c157c93c025f]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1979

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