Seiko Cal. 6340 - 418

The Seiko 6340-418 represents an important milestone in Seiko's 1975 lineup. Powered by the 6340 caliber with 22j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-b80d8fc50302]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1975

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