Seiko Cal. 3870 - 461

The 3870-461 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3870 caliber with 34j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-53dba002824f]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1999

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