Seiko Cal. 5239 - 636

The Seiko 5239-636 represents an important milestone in Seiko's 1971 lineup. Powered by the 5239 caliber with 36j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-3041b678e454]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1971

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