Seiko Cal. 6128 - 311

This Spring Drive model from 1979 features a 42mm PVD Black case. Powered by the 6128 caliber with 35j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-5512c4a43d1c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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