Seiko Cal. 6642 - 109

The Seiko 6642-109 represents an important milestone in Seiko's 1969 lineup. Powered by the 6642 caliber with 20j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-c5a959fbf7f9]

Also known as: World Timer, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1969

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