Seiko Cal. 3840 - 905

This Spring Drive model from 1971 features a 45mm Gold-Plated case. It features a Champagne dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-523474ad7913]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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