Seiko Cal. 7122 - 840

The 7122-840 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7122 caliber with 34j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-85878ffa5d3c]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1989

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