Seiko Cal. 6390 - 727

Seiko 6390-727

The 6390-727 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6390 caliber with 32j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-41d9e455346f]

Also known as: UFO, Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
32j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1976

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