Seiko Cal. 7112 - 540

The Seiko 7112-540 represents an important milestone in Seiko's 1971 lineup. Powered by the 7112 caliber with 20j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-6f47ba8a2d3f]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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