Seiko Cal. 3857 - 161

The 3857-161 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3857 caliber with 18j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-b08be4f37976]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1988

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