Seiko Cal. 3890 - 725

The 3890-725 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3890 caliber with 34j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-8f28cf53704b]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1978

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