Seiko Cal. 6644 - 727

The 6644-727 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 20j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-a8fb546d50b3]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1972

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