Seiko Cal. 6639 - 582

Seiko 6639-582

The 6639-582 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6639 caliber with 28j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-78a8b2faed69]

Also known as: UFO

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Green
Jewels
28j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1998

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seikata-wm-78a8b2faed69