Seiko Cal. 7055 - 678

The 7055-678 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7055 caliber with 28j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-9f07d9e6d16d]

Also known as: World Timer, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1989

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