Seiko Cal. 4447 - 783

The 4447-783 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4447 caliber with 18j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-fb1ae8b92e13]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1971

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