Seiko Cal. 3838 - 772

This Spring Drive model from 1972 features a 44mm Two-Tone case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-c99f8c8da09f]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1972

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