Seiko Cal. 6648 - 781

The 6648-781 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-aa08eae0787f]

Also known as: Monster, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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