Seiko Cal. 5684 - 397

Seiko 5684-397

The 5684-397 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5684 caliber with 29j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-4ad0f75d9b7b]

Also known as: UFO, Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
8.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Cream
Jewels
29j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1976

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