Seiko Cal. 3821 - 154

The Seiko 3821-154 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-ad7ec45205cd]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1977

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