Seiko Cal. 3857 - 742

Seiko 3857-742

The 3857-742 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3857 caliber with 18j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-c2c3da649ff8]

Also known as: Panda, Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
36mm
Case Thickness
15.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1972

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