Seiko Cal. 4427 - 744

The 4427-744 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-29f0d5f5fb82]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1976

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