Seiko Cal. 6240 - 879

The 6240-879 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6240 caliber with 34j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-94c55d630d75]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1986

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