Seiko Cal. 3894 - 489

The 3894-489 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3894 caliber with 18j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-bf6458ff3c34]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1979

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