Seiko Cal. 5639 - 230

The 5639-230 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-450adceeda54]

Also known as: UFO, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1967

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