Seiko Cal. 3894 - 489

Seiko 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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