Seiko Cal. 6678 - 420

This Hand-Winding model from 1966 features a 46mm Two-Tone case. Powered by the 6678 caliber with 18j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-bf9a50ee7b39]

Also known as: Rally, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1966

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