Seiko Cal. 4427 - 777

The 4427-777 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-b25b4a59f42c]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1975

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