Seiko Cal. 6383 - 401

This Spring Drive model from 1985 features a 37mm Titanium case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6a47e6fa36aa]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1985

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