Seiko Cal. 5639 - 577

The Seiko 5639-577 represents an important milestone in Seiko's 1986 lineup. Powered by the 5639 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-fd4eda4269b5]

Also known as: UFO, Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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