Seiko Cal. 6240 - 255

The 6240-255 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-9d6b5e5dafc7]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1979

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