Seiko Cal. 6240 - 536

This Hand-Winding model from 1973 features a 38mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-a178d72b54a4]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1973

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