Seiko Cal. 4447 - 381

The 4447-381 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-d51cbd9a5740]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1975

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