Seiko Cal. 0728 - 691

The 0728-691 is a sought-after Kinetic piece from Seiko's golden era. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2aecd853abc2]

Also known as: Sumo, Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1980

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