Seiko Cal. 4427 - 535

The Seiko 4427-535 represents an important milestone in Seiko's 1968 lineup. It features a Silver dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-ae9ce5ec2bb9]

Also known as: Monster, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1968

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