Seiko Cal. 6128 - 433

The Seiko 6128-433 represents an important milestone in Seiko's 1972 lineup. Powered by the 6128 caliber with 23j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-48c7bebddee1]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1972

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