Seiko Cal. 6390 - 725

Seiko 6390-725

The Seiko 6390-725 represents an important milestone in Seiko's 1972 lineup. Powered by the 6390 caliber with 27j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-29eff2fc0fdf]

Also known as: Monster, Rally

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
34mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1972

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