Seiko Cal. 6684 - 359

Released in 1967, the Cal. 6684 with design code 359 was part of Seiko's domestic market collection. Powered by the 6684 caliber with 19j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-91be8315cfed]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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