Seiko Cal. 7123 - 781

The 7123-781 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7123 caliber with 18j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-8fb38a918a32]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1969

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