Seiko Cal. 6240 - 437

The Seiko 6240-437 represents an important milestone in Seiko's 1977 lineup. Powered by the 6240 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-8597700d9935]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1977

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