Seiko Cal. 6340 - 644

The Seiko 6340-644 represents an important milestone in Seiko's 1981 lineup. Powered by the 6340 caliber with 19j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-4ea19831a2a2]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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