Seiko Cal. 7111 - 378

Released in 1973, the Cal. 7111 with design code 378 was part of Seiko's domestic market collection. Powered by the 7111 caliber with 31j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-ca16bfd8e4e6]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

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