Seiko Cal. 6651 - 137

This Spring Drive model from 1969 features a 42mm PVD Black case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-6d35395d71f6]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1969

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