Seiko Cal. 3850 - 747

The 3850-747 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3850 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-954db60bbd7e]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1981

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