Seiko Cal. 6366 - 241

This Spring Drive model from 1970 features a 40mm Gold-Plated case. With its 20mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-394506c29841]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1970

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