Seiko Cal. 3831 - 902

This Hand-Winding model from 1990 features a 46mm PVD Black case. With its 22mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-1480c0a3fa33]

Also known as: Rally, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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