Seiko Cal. 5639 - 872

The Seiko 5639-872 represents an important milestone in Seiko's 1985 lineup. Powered by the 5639 caliber with 31j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-0ead6a5fba10]

Also known as: Samurai, Monster

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1985

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