Seiko Cal. 6255 - 840

The Seiko 6255-840 represents an important milestone in Seiko's 1978 lineup. Powered by the 6255 caliber with 25j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-0aa258cdffc8]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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