Seiko Cal. 5678 - 840

The 5678-840 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5678 caliber with 34j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-15c598ebbce7]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1972

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