Seiko Cal. 5290 - 931

The Seiko 5290-931 represents an important milestone in Seiko's 1973 lineup. Powered by the 5290 caliber with 30j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-cc7277745edc]

Also known as: Monster, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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