Seiko Cal. 5290 - 312

The Seiko 5290-312 represents an important milestone in Seiko's 1990 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-86b0384f58d9]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1990

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