Seiko Cal. 5639 - 475

The 5639-475 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5639 caliber with 23j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-5309d80df748]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1991

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