Seiko Cal. 6231 - 120

This Solar model from 1969 features a 34mm PVD Black case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-b8cd9004d55e]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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