Seiko Cal. 3840 - 819

This Spring Drive model from 1970 features a 38mm Titanium case. It features a White dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-7747273967ff]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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