Seiko Cal. 6646 - 311

The 6646-311 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6646 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-0e6ab78de54d]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1967

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