Seiko Cal. 7128 - 906

The Seiko 7128-906 represents an important milestone in Seiko's 1968 lineup. Powered by the 7128 caliber with 30j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-dfeee21449cb]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1968

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