Seiko Cal. 6340 - 726

The Seiko 6340-726 represents an important milestone in Seiko's 1978 lineup. Powered by the 6340 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-dfe35daec0bf]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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