Seiko Cal. 0722 - 784

Released in 1977, the Cal. 0722 with design code 784 was part of Seiko's domestic market collection. Powered by the 0722 caliber with 22j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-c7de08ba30c7]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1977

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