Seiko Cal. 6331 - 126

This Automatic model from 1973 features a 36mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-fb8e4de73d21]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1973

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