Seiko Cal. 6677 - 420

The 6677-420 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6677 caliber with 18j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-12f48db6fc4e]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1966

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