Seiko Cal. 6640 - 367

The Seiko 6640-367 represents an important milestone in Seiko's 1999 lineup. Powered by the 6640 caliber with 29j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-76cd09ff6a61]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1999

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