Seiko Cal. 3857 - 947

Seiko 3857-947

The 3857-947 is a sought-after Solar piece from Seiko's golden era. Powered by the 3857 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-6123dbb37b62]

Also known as: Bullhead

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
13.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Green
Jewels
36j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1969

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seikata-wm-6123dbb37b62