Seiko Cal. 6668 - 840

The 6668-840 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6668 caliber with 28j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-59b20a3811f3]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1991

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