Seiko Cal. 6647 - 213

This Quartz model from 1970 features a 44mm PVD Black case. Powered by the 6647 caliber with 31j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-198db58783c5]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1970

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