Seiko Cal. 6684 - 852

The 6684-852 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6684 caliber with 31j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-71031d3a5c98]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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