Seiko Cal. 6140 - 641

This Spring Drive model from 1968 features a 40mm PVD Black case. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-cc7dec366dd9]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1968

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