Seiko Cal. 5631 - 721

This Kinetic model from 1999 features a 36mm Titanium case. Powered by the 5631 caliber with 26j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-1daa5c118d54]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1999

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