Seiko Cal. 5678 - 820

Seiko 5678-820

The 5678-820 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5678 caliber with 30j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-54a7a2f7713a]

Also known as: Bullhead

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
44mm
Case Thickness
15.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1984

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seikata-wm-54a7a2f7713a