Seiko Cal. 3857 - 666

The 3857-666 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3857 caliber with 34j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-4a548b6fca24]

Also known as: Panda, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1968

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