Seiko Cal. 5631 - 706

The 5631-706 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5631 caliber with 18j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-d766535ea115]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1992

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