Seiko Cal. 6646 - 139

The Seiko 6646-139 represents an important milestone in Seiko's 1986 lineup. Powered by the 6646 caliber with 31j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-53dafd02e664]

Also known as: Panda, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1986

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