Seiko Cal. 5612 - 720

The 5612-720 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5612 caliber with 33j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-a56ee074028c]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1979

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