Seiko Cal. 5612 - 706

The Seiko 5612-706 represents an important milestone in Seiko's 1971 lineup. Powered by the 5612 caliber with 28j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-424889be7ba0]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1971

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