Seiko Cal. 3856 - 490

This Spring Drive model from 1974 features a 37mm Titanium case. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-6b8906d1115c]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1974

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