Seiko Cal. 6646 - 804

The Seiko 6646-804 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b5b588b9217f]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1966

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