Seiko Cal. 6378 - 305

The 6378-305 is a sought-after Solar piece from Seiko's golden era. Powered by the 6378 caliber with 26j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-cd08cc5240da]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1983

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