Seiko Cal. 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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