Seiko Cal. 7078 - 647

The 7078-647 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7078 caliber with 26j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-06d4cb68bbe7]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1994

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