Seiko Cal. 5290 - 903

The Seiko 5290-903 represents an important milestone in Seiko's 1966 lineup. Powered by the 5290 caliber with 20j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-fbdb166379f7]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1966

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