Seiko Cal. 6378 - 560

Released in 1972, the Cal. 6378 with design code 560 was part of Seiko's domestic market collection. Powered by the 6378 caliber with 36j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-c324bd0aedb1]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1972

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