Seiko Cal. 6652 - 738

This Spring Drive model from 1970 features a 39mm PVD Black case. Powered by the 6652 caliber with 20j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-9375ad0e4d71]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1970

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