Seiko Cal. 3821 - 166

The Seiko 3821-166 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-223070da1b8d]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

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