Seiko Cal. 4447 - 307

The 4447-307 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-ddd97ab71c4e]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1995

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