Seiko Cal. 7123 - 378

The 7123-378 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7123 caliber with 21j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-f2c26a1d8718]

Also known as: Tuna, Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1976

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