Seiko Cal. 6340 - 257

The Seiko 6340-257 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-aace976c6321]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

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