Seiko Cal. 6340 - 398

The Seiko 6340-398 represents an important milestone in Seiko's 1978 lineup. Powered by the 6340 caliber with 18j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-db17fe2dbb3d]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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