Seiko Cal. 6321 - 780

This Automatic model from 1967 features a 37mm Titanium case. With its 20mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-555ad374bf9d]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1967

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