Seiko Cal. 4584 - 309

The Seiko 4584-309 represents an important milestone in Seiko's 1965 lineup. Powered by the 4584 caliber with 33j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-c1aa5f230527]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1965

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