Seiko Cal. 6670 - 699

This Spring Drive model from 1965 features a 41mm PVD Black case. Powered by the 6670 caliber with 28j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-dc9577113cbe]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1965

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