Seiko Cal. 4427 - 525

The 4427-525 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-83965ad7d9df]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1966

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