Seiko Cal. 0728 - 441

The Seiko 0728-441 represents an important milestone in Seiko's 1981 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-bf0cc5f634e0]

Also known as: Turtle, Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1981

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