Seiko Cal. 5239 - 928

This Spring Drive model from 1977 features a 40mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-52e1e19b1db7]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1977

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