Seiko Cal. 3857 - 521

The 3857-521 is a sought-after Solar piece from Seiko's golden era. Powered by the 3857 caliber with 26j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-c444a4d264af]

Also known as: Shogun, Silverwave

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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