Seiko Cal. 6148 - 840

The Seiko 6148-840 represents an important milestone in Seiko's 1971 lineup. Powered by the 6148 caliber with 18j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-e96f7926b63c]

Also known as: Helmet, Silverwave

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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