Seiko Cal. 4427 - 131

The Seiko 4427-131 represents an important milestone in Seiko's 1967 lineup. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-8f2869e6cd41]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1967

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