Seiko Cal. 6644 - 446

The Seiko 6644-446 represents an important milestone in Seiko's 1987 lineup. Powered by the 6644 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-fe3c2745c8a7]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1987

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