Seiko Cal. 6230 - 356

This Spring Drive model from 1975 features a 37mm Titanium case. It features a White dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-d9025fb7314e]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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