Seiko Cal. 3857 - 521

Seiko 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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