Seiko Cal. 6123 - 878

The Seiko 6123-878 represents an important milestone in Seiko's 1978 lineup. Powered by the 6123 caliber with 28j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-484ca1691c98]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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