Seiko Cal. 5631 - 719

The Seiko 5631-719 represents an important milestone in Seiko's 1985 lineup. Powered by the 5631 caliber with 36j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-a2d6606d11e4]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1985

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