Seiko Cal. 6340 - 640

The Seiko 6340-640 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-06fe6419dffd]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1976

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