Seiko Cal. 6644 - 550

The 6644-550 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6644 caliber with 20j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-5b5e6568a42c]

Also known as: Goldfeather, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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