Seiko Cal. 0731 - 884

This Spring Drive model from 1991 features a 46mm Hardlex-Coated Steel case. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-96c39ad2ca42]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1991

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