Seiko Cal. 6133 - 581

The Seiko 6133-581 represents an important milestone in Seiko's 1966 lineup. Powered by the 6133 caliber with 30j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-3261ed685d9c]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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