Seiko Cal. 3840 - 297

The Seiko 3840-297 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-38bb33bd6a2c]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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