Seiko Cal. 6670 - 177

The Seiko 6670-177 represents an important milestone in Seiko's 1976 lineup. Powered by the 6670 caliber with 35j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-942a95271475]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1976

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