Seiko Cal. 7178 - 727

The 7178-727 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7178 caliber with 33j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-50246bc9accf]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

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