Seiko Cal. 6639 - 230

The 6639-230 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-36fc1bb843a3]

Also known as: Monster, Shogun

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1986

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