Seiko Cal. 4427 - 140

Released in 1965, the Cal. 4427 with design code 140 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-ec3637fa5e4b]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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