Seiko Cal. 7156 - 730

The Seiko 7156-730 represents an important milestone in Seiko's 1991 lineup. Powered by the 7156 caliber with 20j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-a026c78f1c67]

Also known as: Tuna, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1991

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