Seiko Cal. 3890 - 707

The 3890-707 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3890 caliber with 22j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-085d7a36b836]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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