Seiko Cal. 5231 - 927

This Automatic model from 1969 features a 35mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-d70f7fbb0ae8]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1969

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