Seiko Cal. 3890 - 102

The 3890-102 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3890 caliber with 18j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-18ae8756b327]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1986

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