Seiko Cal. 6680 - 443

The 6680-443 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6680 caliber with 28j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-0fe19cd114de]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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