Seiko Cal. 6651 - 731

The 6651-731 is a sought-after Kinetic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-b3ea4301e30a]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1998

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