Seiko Cal. 0728 - 241

This Hand-Winding model from 1966 features a 46mm Two-Tone case. With its 22mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-0932e091b186]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1966

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