Seiko Cal. 6646 - 611

The Seiko 6646-611 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-d4dd4705cdc8]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1968

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