Seiko Cal. 3854 - 770

This Spring Drive model from 1970 features a 40mm PVD Black case. It features a Navy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-369fe9e15f19]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1970

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