Seiko Cal. 3857 - 725

The 3857-725 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3857 caliber with 17j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-236bd8f16cb8]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1995

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