Seiko Cal. 3890 - 247

Released in 1979, the Cal. 3890 with design code 247 was part of Seiko's domestic market collection. Powered by the 3890 caliber with 21j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-864a6f2cb02a]

Also known as: UFO, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1979

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