Seiko Cal. 3864 - 790

This Hand-Winding model from 1975 features a 35mm Gold-Plated case. It features a Navy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-c67179ed9a52]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1975

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