Seiko Cal. 6340 - 251

The Seiko 6340-251 represents an important milestone in Seiko's 1987 lineup. Powered by the 6340 caliber with 21j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-726f24d98709]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1987

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