Seiko Cal. 3816 - 534

This Spring Drive model from 1974 features a 40mm PVD Black case. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-d2585f35870b]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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