Seiko Cal. 5684 - 139

The 5684-139 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5684 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-38f4eec1204b]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1965

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