Seiko Cal. 7156 - 251

The Seiko 7156-251 represents an important milestone in Seiko's 1966 lineup. Powered by the 7156 caliber with 23j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-b90eef366cbc]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1966

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