Seiko Cal. 5639 - 846

The Seiko 5639-846 represents an important milestone in Seiko's 1986 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-64ff03be324f]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1986

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