Seiko Cal. 0728 - 957

This Spring Drive model from 1975 features a 40mm PVD Black case. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-86934892b393]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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