Seiko Cal. 3864 - 900

The Seiko 3864-900 represents an important milestone in Seiko's 1981 lineup. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-b26f544454b4]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1981

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