Seiko Cal. 0724 - 181

The Seiko 0724-181 represents an important milestone in Seiko's 1970 lineup. Powered by the 0724 caliber with 17j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-f724cb9acbe9]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1970

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