Seiko Cal. 5231 - 863

The 5231-863 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-94d9af096aa0]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1999

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