Seiko Cal. 3820 - 172

This Automatic model from 1976 features a 46mm Stainless Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-508cdf83166d]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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