Seiko Cal. 0728 - 931

This Spring Drive model from 1991 features a 35mm Hardlex-Coated Steel case. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-69a5bce9eca4]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1991

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